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Low 3.1Published Aug 19, 2026
CVE-2026-76887Heap-based Buffer Overflow in Wireshark
Updated under an hour ago ()
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It affects Wireshark Foundation Wireshark and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Free account, 1 product
Crash in the Wireshark dissection engine in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service
- CVSS
- 3.1 LOW (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L
- Weakness (CWE)
- CWE-122
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitLab
- NVD analysis
- Analyzed
- Record last updated
- Sep 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Wireshark Foundation Wireshark wireshark_foundation:wireshark (from the name) | from 4.6.0 before 4.6.8; from 4.4.0 before 4.4.18 | CNA record |
wireshark wireshark wireshark:wireshark | from 4.4.0 before 4.4.18; from 4.6.0 before 4.6.8 | NVD |
References
- https://www.wireshark.org/security/wnpa-sec-2026-69.htmlvendor-advisory
- https://gitlab.com/wireshark/wireshark/-/work_items/21423mitigation, vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.