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CVE-2020-26575
In Wireshark through 3.2.7, the Facebook Zero Protocol (aka FBZERO) dissector could enter an infinite loop. This was addressed in…
High7.5EPSS 3.1%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
In Wireshark through 3.2.7, the Facebook Zero Protocol (aka FBZERO) dissector could enter an infinite loop. This was addressed in epan/dissectors/packet-fbzero.c by correcting the implementation of offset advancement.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 3.1% · top 12% of all CVEs (7 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
Affected products
n/a
- affected n/a
References (12)
- https://gitlab.com/wireshark/wireshark/-/issues/16887 (opens in a new tab)x_refsource_MISCx_transferred
- https://gitlab.com/wireshark/wireshark/-/merge_requests/467 (opens in a new tab)x_refsource_MISCx_transferred
- https://gitlab.com/wireshark/wireshark/-/merge_requests/471 (opens in a new tab)x_refsource_MISCx_transferred
- https://gitlab.com/wireshark/wireshark/-/merge_requests/472 (opens in a new tab)x_refsource_MISCx_transferred
- https://gitlab.com/wireshark/wireshark/-/merge_requests/473 (opens in a new tab)x_refsource_MISCx_transferred
- https://gitlab.com/wireshark/wireshark/-/commit/3ff940652962c099b73ae3233322b8697b0d10ab (opens in a new tab)x_refsource_MISCx_transferred
- GLSA-202011-08 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- FEDORA-2020-4cff262f07 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- FEDORA-2020-d4344dd12f (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- https://www.oracle.com/security-alerts/cpujan2021.html (opens in a new tab)x_refsource_MISCx_transferred
- https://www.wireshark.org/security/wnpa-sec-2020-14.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- [debian-lts-announce] 20210206 [SECURITY] [DLA 2547-1] wireshark security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2020-26575)Record last updated .