RHSA-2026:83657: Moderate: wireshark security update

Synopsis Moderate: wireshark security update Type/Severity Security Advisory: Moderate Red Hat Lightspeed patch analysis Identify and remediate systems affected by this advisory. View affected systems Topic An update for wireshark is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. Description The wireshark packages contain a network protocol analyzer used to capture and browse the traffic running on a computer network. Security Fix(es): - wireshark: Wireshark: Denial of Service via C12.22 protocol dissector crash (CVE-2026-76886) - wireshark: Wireshark: Denial of Service via RRC protocol dissector out-of-bounds write (CVE-2026-76880) - wireshark: Wireshark: Denial of Service vulnerability in ESS protocol dissector (CVE-2026-76919) - wireshark: Wireshark: Denial of Service vulnerability in H.245 protocol dissector (CVE-2026-76927) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Affected Products - Red Hat Enterprise Linux for x86_64 8 x86_64 - Red Hat Enterprise Linux for IBM z Systems 8 s390x - Red Hat Enterprise Linux for Power, little endian 8 ppc64le - Red Hat Enterprise Linux for ARM 64 8 aarch64 - Red Hat CodeReady Linux Builder for x86_64 8 x86_64 - Red Hat CodeReady Linux Builder for Power, little endian 8 ppc64le - Red Hat CodeReady Linux Builder for ARM 64 8 aarch64 - Red Hat CodeReady Linux Builder for IBM z Systems 8 s390x - Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 8.10 x86_64 - Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 8.10 aarch64 - Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 8.10 ppc64le - Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 8.10 s390x Fixes - BZ - 2520079 - CVE-2026-76886 wireshark: Wireshark: Denial of Service via C12.22 protocol dissector crash - BZ - 2520088 - CVE-2026-76880 wireshark: Wireshark: Denial of Service via RRC protocol dissector out-of-bounds write - BZ - 2520093 - CVE-2026-76919 wireshark: Wireshark: Denial of Service vulnerability in ESS protocol dissector - BZ - 2520103 - CVE-2026-76927 wireshark: Wireshark: Denial of Service vulnerability in H.245 protocol dissector Note: More recent versions of these packages may be available. Click a package name for more details. Red Hat Enterprise Linux for x86_64 8 | SRPM | | wireshark-2.6.2-21.el8_10.src.rpm | SHA-256: d8468a825b7e25fe74ff66b06981437dab1a57eb582c190ad0a3eebf366a8e99 | | x86_64 | | wireshark-2.6.2-21.el8_10.x86_64.rpm | SHA-256: 029bbc26eb9f129f1f4f443aff869178856e0b74c97e32f0fb71d99d0ed93fd9 | | wireshark-cli-2.6.2-21.el8_10.i686.rpm | SHA-256: 2bcffa6fcb053aa23b25e64037854f853e29ee36d0aa9812a9e7ebf04420b857 | | wireshark-cli-2.6.2-21.el8_10.x86_64.rpm | SHA-256: d1459cc4b0fcaee1fb255d3fac93acfe78334841a6508db85e4bc2a1ad8fac62 | | wireshark-cli-debuginfo-2.6.2-21.el8_10.i686.rpm | SHA-256: 63347b8a6f080d495fc68259d47f185ead053a1e03069fb7dd4d510d54f7681c | | wireshark-cli-debuginfo-2.6.2-21.el8_10.x86_64.rpm | SHA-256: 83dbadb8d87d569d17251bfa38dfba295d21a03a5101742f32ee3cd35900abf6 | | wireshark-debuginfo-2.6.2-21.el8_10.i686.rpm | SHA-256: 13baf753876816742bfc06cdc9d50b9e1fd4f68a15601688b2797de5a27d94d2 | | wireshark-debuginfo-2.6.2-21.el8_10.x86_64.rpm | SHA-256: 06991cb1ba2a1e63fc35045c745595d761a0620ef459a4fae71669e125532749 | | wireshark-debugsource-2.6.2-21.el8_10.i686.rpm | SHA-256: f5b30d88c5dac7704de81adde5a9d0b818a771ca06019b85fa96d74bceaa9f8f | | wireshark-debugsource-2.6.2-21.el8_10.x86_64.rpm | SHA-256: fd24134617b94d890ac5a6b261d6c90381ba2d6f2b6d3684d11fbc61476ec2a0 | Red Hat Enterprise Linux for IBM z Systems 8 | SRPM | | wireshark-2.6.2-21.el8_10.src.rpm | SHA-256: d8468a825b7e25fe74ff66b06981437dab1a57eb582c190ad0a3eebf366a8e99 | | s390x | | wireshark-2.6.2-21.el8_10.s390x.rpm | SHA-256: 7d0a71df0bab0aeed9d172a7d747b407f9830df2a9dad89828a926acea3331b8 | | wireshark-cli-2.6.2-21.el8_10.s390x.rpm | SHA-256: 07d739291e367caa240fd50acffc8b8203aa3ad6014bb9f0ae757a9879a8abf8 | | wireshark-cli-debuginfo-2.6.2-21.el8_10.s390x.rpm | SHA-256: c8d95e0c6586931e5cdda4f291afc86319f0ae55127c2ec44d4aa3450a7fd5bf | | wireshark-debuginfo-2.6.2-21.el8_10.s390x.rpm | SHA-256: f54b5828e4d30f2f406639b6dac8fcbd3833678f3e46bfc64b4ebecb2afc779d | | wireshark-debugsource-2.6.2-21.el8_10.s390x.rpm | SHA-256: a8db2ecac628bd91310a5ee94edae4c89b148ad4942a3964ae7846a461b417ae | Red Hat Enterprise Linux for Power, little endian 8 | SRPM | | wireshark-2.6.2-21.el8_10.src.rpm | SHA-256: d8468a825b7e25fe74ff66b06981437dab1a57eb582c190ad0a3eebf366a8e99 | | ppc64le | | wireshark-2.6.2-21.el8_10.ppc64le.rpm | SHA-256: f08164f4c9bfe885cf818236a43820a8141128d9d4e9e15d54d192787d1500e1 | | wireshark-cli-2.6.2-21.el8_10.ppc64le.rpm | SHA-256: 51884c3c18b85d6af76d3698658b3be8d9f5c6a559d1cb16fd1bf1281ab3c3e3 | | wireshark-cli-debuginfo-2.6.2-21.el8_10.ppc64le.rpm | SHA-256: acd7280659856cefca6b188267041c3cce1b2667525c507203c5cbe2cdbb6a0c | | wireshark-debuginfo-2.6.2-21.el8_10.ppc64le.rpm | SHA-256: 0ef2bae0180786219bb2cb963db720ef9863f74d8c9320519e345ab3ec7a0775 | | wireshark-debugsource-2.6.2-21.el8_10.ppc64le.rpm | SHA-256: 82b403fc22b12c2950601ef3e24da577f8a2050986c6bed218e2e168090c1f5b | Red Hat Enterprise Linux for ARM 64 8 | SRPM | | wireshark-2.6.2-21.el8_10.src.rpm | SHA-256: d8468a825b7e25fe74ff66b06981437dab1a57eb582c190ad0a3eebf366a8e99 | | aarch64 | | wireshark-2.6.2-21.el8_10.aarch64.rpm | SHA-256: d39c3d5d8e2fa9e79becb94ce59d23a49ca56ea18ecdcbe3f3dc3a1d5924d873 | | wireshark-cli-2.6.2-21.el8_10.aarch64.rpm | SHA-256: d890fe5b42be75d16488f77d44f318c15b3799621235b0da77a1bec4a5acca30 | | wireshark-cli-debuginfo-2.6.2-21.el8_10.aarch64.rpm | SHA-256: ca0fd8dea4d0e9353ddfdba71c269b13b5670c62712ff742dceefed26e6c8c88 | | wireshark-debuginfo-2.6.2-21.el8_10.aarch64.rpm | SHA-256: b832f7779e58a35cd7b80553a7faeb557caae1578d692072c157ed131a2f2af9 | | wireshark-debugsource-2.6.2-21.el8_10.aarch64.rpm | SHA-256: 5825f1e01809a7e95f426246479728ccf764b6276ccc2cd7ba5267664a8c8d8a | Red Hat CodeReady Linux Builder for x86_64 8 | SRPM | | x86_64 | | wireshark-cli-debuginfo-2.6.2-21.el8_10.i686.rpm | SHA-256: 63347b8a6f080d495fc68259d47f185ead053a1e03069fb7dd4d510d54f7681c | | wireshark-cli-debuginfo-2.6.2-21.el8_10.x86_64.rpm | SHA-256: 83dbadb8d87d569d17251bfa38dfba295d21a03a5101742f32ee3cd35900abf6 | | wireshark-debuginfo-2.6.2-21.el8_10.i686.rpm | SHA-256: 13baf753876816742bfc06cdc9d50b9e1fd4f68a15601688b2797de5a27d94d2 | | wireshark-debuginfo-2.6.2-21.el8_10.x86_64.rpm | SHA-256: 06991cb1ba2a1e63fc35045c745595d761a0620ef459a4fae71669e125532749 | | wireshark-debugsource-2.6.2-21.el8_10.i686.rpm | SHA-256: f5b30d88c5dac7704de81adde5a9d0b818a771ca06019b85fa96d74bceaa9f8f | | wireshark-debugsource-2.6.2-21.el8_10.x86_64.rpm | SHA-256: fd24134617b94d890ac5a6b261d6c90381ba2d6f2b6d3684d11fbc61476ec2a0 | | wireshark-devel-2.6.2-21.el8_10.i686.rpm | SHA-256: 76dfbc7d883739b26c077877cf58e04f15312a07dd7dddf63a1d09a0e59b4652 | | wireshark-devel-2.6.2-21.el8_10.x86_64.rpm | SHA-256: 02a439285f443540884a9df508aa45c8fff1acba5000c31ead05040c9ada2d60 | Red Hat CodeReady Linux Builder for Power, little endian 8 | SRPM | | ppc64le | | wireshark-cli-debuginfo-2.6.2-21.el8_10.ppc64le.rpm | SHA-256: acd7280659856cefca6b188267041c3cce1b2667525c507203c5cbe2cdbb6a0c | | wireshark-debuginfo-2.6.2-21.el8_10.ppc64le.rpm | SHA-256: 0ef2bae0180786219bb2cb963db720ef9863f74d8c9320519e345ab3ec7a0775 | | wireshark-debugsource-2.6.2-21.el8_10.ppc64le.rpm | SHA-256: 82b403fc22b12c2950601ef3e24da577f8a2050986c6bed218e2e168090c1f5b | | wireshark-devel-2.6.2-21.el8_10.ppc64le.rpm | SHA-256: 6a0138cb3817c4aedfdf33b8f2f6a4d0376f6c4ae933b39b78357e09e08e48c3 | Red Hat CodeReady Linux Builder for ARM 64 8 | SRPM | | aarch64 | | wireshark-cli-debuginfo-2.6.2-21.el8_10.aarch64.rpm | SHA-256: ca0fd8dea4d0e9353ddfdba71c269b13b5670c62712ff742dceefed26e6c8c88 | | wireshark-debuginfo-2.6.2-21.el8_10.aarch64.rpm | SHA-256: b832f7779e58a35cd7b80553a7faeb557caae1578d692072c157ed131a2f2af9 | | wireshark-debugsource-2.6.2-21.el8_10.aarch64.rpm | SHA-256: 5825f1e01809a7e95f426246479728ccf764b6276ccc2cd7ba5267664a8c8d8a | | wireshark-devel-2.6.2-21.el8_10.aarch64.rpm | SHA-256: 81df934a4c92edc4be4de6a01dbc05e4a33f5f5b3fa548ba3dff0e8bc5739940 | Red Hat CodeReady Linux Builder for IBM z Systems 8 | SRPM | | s390x | | wireshark-cli-debuginfo-2.6.2-21.el8_10.s390x.rpm | SHA-256: c8d95e0c6586931e5cdda4f291afc86319f0ae55127c2ec44d4aa3450a7fd5bf | | wireshark-debuginfo-2.6.2-21.el8_10.s390x.rpm | SHA-256: f54b5828e4d30f2f406639b6dac8fcbd3833678f3e46bfc64b4ebecb2afc779d | | wireshark-debugsource-2.6.2-21.el8_10.s390x.rpm | SHA-256: a8db2ecac628bd91310a5ee94edae4c89b148ad4942a3964ae7846a461b417ae | | wireshark-devel-2.6.2-21.el8_10.s390x.rpm | SHA-256: 53c9e7de4211368193d1e7d920388d82cbf1d0b10bf9ce2edda261a6e5e2e0b4 | Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 8.10 | SRPM | | wireshark-2.6.2-21.el8_10.src.rpm | SHA-256: d8468a825b7e25fe74ff66b06981437dab1a57eb582c190ad0a3eebf366a8e99 | | x86_64 | | wireshark-2.6.2-21.el8_10.x86_64.rpm | SHA-256: 029bbc26eb9f129f1f4f443aff869178856e0b74c97e32f0fb71d99d0ed93fd9 | | wireshark-cli-2.6.2-21.el8_10.i686.rpm | SHA-256: 2bcffa6fcb053aa23b25e64037854f853e29ee36d0aa9812a9e7ebf04420b857 | | wireshark-cli-2.6.2-21.el8_10.x86_64.rpm | SHA-256: d1459cc4b0fcaee1fb255d3fac93acfe78334841a6508db85e4bc2a1ad8fac62 | | wireshark-cli-debuginfo-2.6.2-21.el8_10.i686.rpm | SHA-256: 63347b8a6f080d495fc68259d47f185ead053a1e03069fb7dd4d510d54f7681c | | wireshark-cli-debuginfo-2.6.2-21.el8_10.x86_64.rpm | SHA-256: 83dbadb8d87d569d17251bfa38dfba295d21a03a5101742f32ee3cd35900abf6 | | wireshark-debuginfo-2.6.2-21.el8_10.i686.rpm | SHA-256: 13baf753876816742bfc06cdc9d50b9e1fd4f68a15601688b2797de5a27d94d2 | | wireshark-debuginfo-2.6.2-21.el8_10.x86_64.rpm | SHA-256: 06991cb1ba2a1e63fc35045c745595d761a0620ef459a4fae71669e125532749 | | wireshark-debugsource-2.6.2-21.el8_10.i686.rpm | SHA-256: f5b30d88c5dac7704de81adde5a9d0b818a771ca06019b85fa96d74bceaa9f8f | | wireshark-debugsource-2.6.2-21.el8_10.x86_64.rpm | SHA-256: fd24134617b94d890ac5a6b261d6c90381ba2d6f2b6d3684d11fbc61476ec2a0 | Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 8.10 | SRPM | | wireshark-2.6.2-21.el8_10.src.rpm | SHA-256: d8468a825b7e25fe74ff66b06981437dab1a57eb582c190ad0a3eebf366a8e99 | | aarch64 | | wireshark-2.6.2-21.el8_10.aarch64.rpm | SHA-256: d39c3d5d8e2fa9e79becb94ce59d23a49ca56ea18ecdcbe3f3dc3a1d5924d873 | | wireshark-cli-2.6.2-21.el8_10.aarch64.rpm | SHA-256: d890fe5b42be75d16488f77d44f318c15b3799621235b0da77a1bec4a5acca30 | | wireshark-cli-debuginfo-2.6.2-21.el8_10.aarch64.rpm | SHA-256: ca0fd8dea4d0e9353ddfdba71c269b13b5670c62712ff742dceefed26e6c8c88 | | wireshark-debuginfo-2.6.2-21.el8_10.aarch64.rpm | SHA-256: b832f7779e58a35cd7b80553a7faeb557caae1578d692072c157ed131a2f2af9 | | wireshark-debugsource-2.6.2-21.el8_10.aarch64.rpm | SHA-256: 5825f1e01809a7e95f426246479728ccf764b6276ccc2cd7ba5267664a8c8d8a | Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 8.10 | SRPM | | wireshark-2.6.2-21.el8_10.src.rpm | SHA-256: d8468a825b7e25fe74ff66b06981437dab1a57eb582c190ad0a3eebf366a8e99 | | ppc64le | | wireshark-2.6.2-21.el8_10.ppc64le.rpm | SHA-256: f08164f4c9bfe885cf818236a43820a8141128d9d4e9e15d54d192787d1500e1 | | wireshark-cli-2.6.2-21.el8_10.ppc64le.rpm | SHA-256: 51884c3c18b85d6af76d3698658b3be8d9f5c6a559d1cb16fd1bf1281ab3c3e3 | | wireshark-cli-debuginfo-2.6.2-21.el8_10.ppc64le.rpm | SHA-256: acd7280659856cefca6b188267041c3cce1b2667525c507203c5cbe2cdbb6a0c | | wireshark-debuginfo-2.6.2-21.el8_10.ppc64le.rpm | SHA-256: 0ef2bae0180786219bb2cb963db720ef9863f74d8c9320519e345ab3ec7a0775 | | wireshark-debugsource-2.6.2-21.el8_10.ppc64le.rpm | SHA-256: 82b403fc22b12c2950601ef3e24da577f8a2050986c6bed218e2e168090c1f5b | Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 8.10 | SRPM | | wireshark-2.6.2-21.el8_10.src.rpm | SHA-256: d8468a825b7e25fe74ff66b06981437dab1a57eb582c190ad0a3eebf366a8e99 | | s390x | | wireshark-2.6.2-21.el8_10.s390x.rpm | SHA-256: 7d0a71df0bab0aeed9d172a7d747b407f9830df2a9dad89828a926acea3331b8 | | wireshark-cli-2.6.2-21.el8_10.s390x.rpm | SHA-256: 07d739291e367caa240fd50acffc8b8203aa3ad6014bb9f0ae757a9879a8abf8 | | wireshark-cli-debuginfo-2.6.2-21.el8_10.s390x.rpm | SHA-256: c8d95e0c6586931e5cdda4f291afc86319f0ae55127c2ec44d4aa3450a7fd5bf | | wireshark-debuginfo-2.6.2-21.el8_10.s390x.rpm | SHA-256: f54b5828e4d30f2f406639b6dac8fcbd3833678f3e46bfc64b4ebecb2afc779d | | wireshark-debugsource-2.6.2-21.el8_10.s390x.rpm | SHA-256: a8db2ecac628bd91310a5ee94edae4c89b148ad4942a3964ae7846a461b417ae |