CVE catalog
CVE-2024-11477
7zip: CVE-2024-11477
- Severity
- High · CVSS 8.2
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 22.39% · Oct 25, 2026
7-Zip Zstandard Decompression Integer Underflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of 7-Zip. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation. The specific flaw exists within the implementation of Zstandard decompression. The issue results from the lack of proper validation of user-supplied data, which can result in an integer underflow before writing to memory. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-24346.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | 7zip | sid | 26.05+dfsg-1 | fixed |
| Debian | 7zip | forky | 26.05+dfsg-1 | fixed |
| Debian | 7zip | trixie | 25.01+dfsg-1~deb13u2 | fixed |
| Debian | 7zip | bookworm | 22.01+really26.01+dfsg-0+deb12u1 | not affected |
| Debian | 7zip | bookworm-security | 22.01+really26.02+dfsg-0+deb12u1 | not affected |
| Debian | p7zip | trixie | 16.02+transitional.1 | not affected |
| Debian | p7zip | bookworm | 16.02+really26.01+dfsg-0+deb12u1 | not affected |
| Debian | p7zip | bookworm-security | 16.02+really26.02+dfsg-0+deb12u1 | not affected |
| Ubuntu | p7zip | 14.04 | 9.20.1~dfsg.1-4 | vulnerable |
| Ubuntu | p7zip | 14.04 | 9.20.1~dfsg.1-4+deb7u1build0.14.04.1 | vulnerable |
| Ubuntu | p7zip | 14.04 | 9.20.1~dfsg.1-4+deb7u2build0.14.04.1 | vulnerable |
| Ubuntu | p7zip | 14.04 | 9.20.1~dfsg.1-4+deb7u3build0.14.04.1 | vulnerable |
| Ubuntu | p7zip | 16.04 | 9.20.1~dfsg.1-4.2 | vulnerable |
| Ubuntu | p7zip | 16.04 | 9.20.1~dfsg.1-4.2ubuntu0.1 | vulnerable |
| Ubuntu | p7zip | 18.04 | 16.02+dfsg-4 | vulnerable |
| Ubuntu | p7zip | 18.04 | 16.02+dfsg-5 | vulnerable |
| Ubuntu | p7zip | 18.04 | 16.02+dfsg-6 | vulnerable |
| Ubuntu | p7zip | 20.04 | 16.02+dfsg-7 | vulnerable |
| Ubuntu | p7zip | 20.04 | 16.02+dfsg-7build1 | vulnerable |
| Ubuntu | p7zip | 22.04 | 16.02+dfsg-8 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | 7zip | source | sid | 24.07+dfsg-1 | not yet assigned | Not reported | Not reported |
| Debian | 7zip | source | forky | 24.07+dfsg-1 | not yet assigned | Not reported | Not reported |
| Debian | 7zip | source | trixie | 24.07+dfsg-1 | not yet assigned | Not reported | Not reported |
| Debian | 7zip | source | bookworm | Not affected | unimportant | Not reported | Not reported |
| Debian | p7zip | source | trixie | Not affected | unimportant | Not reported | Not reported |
| Debian | p7zip | source | bookworm | Not affected | unimportant | Not reported | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [7zip]Not affected
Details (6)
22.01+really26.01+dfsg-0+deb12u1· amd64 · bookwormNot affected
dsa · 7zip · debian · bookworm
22.01+really26.01+dfsg-0+deb12u1· arm64 · bookwormNot affected
dsa · 7zip · debian · bookworm
25.01+dfsg-1~deb13u1~bpo12+1· amd64 · bookworm-backportsNot affected
dsa · 7zip · debian · bookworm
25.01+dfsg-1~deb13u1~bpo12+1· arm64 · bookworm-backportsNot affected
dsa · 7zip · debian · bookworm
22.01+really26.02+dfsg-0+deb12u1· amd64 · bookworm-securityNot affected
dsa · 7zip · debian · bookworm
22.01+really26.02+dfsg-0+deb12u1· arm64 · bookworm-securityNot affected
dsa · 7zip · debian · bookworm
- [7zip-standalone]Not affected
Source package: [7zip]
Details (2)
25.01+dfsg-1~deb13u1~bpo12+1· amd64 · bookworm-backportsNot affected
dsa · 7zip · debian · bookworm
25.01+dfsg-1~deb13u1~bpo12+1· arm64 · bookworm-backportsNot affected
dsa · 7zip · debian · bookworm
- [p7zip]Not affected
Details (4)
16.02+really26.01+dfsg-0+deb12u1· amd64 · bookwormNot affected
dsa · p7zip · debian · bookworm
16.02+really26.01+dfsg-0+deb12u1· arm64 · bookwormNot affected
dsa · p7zip · debian · bookworm
16.02+really26.02+dfsg-0+deb12u1· amd64 · bookworm-securityNot affected
dsa · p7zip · debian · bookworm
16.02+really26.02+dfsg-0+deb12u1· arm64 · bookworm-securityNot affected
dsa · p7zip · debian · bookworm
- [p7zip-full]Not affected
Source package: [p7zip]
Details (4)
16.02+really26.01+dfsg-0+deb12u1· amd64 · bookwormNot affected
dsa · p7zip · debian · bookworm
16.02+really26.01+dfsg-0+deb12u1· arm64 · bookwormNot affected
dsa · p7zip · debian · bookworm
16.02+really26.02+dfsg-0+deb12u1· amd64 · bookworm-securityNot affected
dsa · p7zip · debian · bookworm
16.02+really26.02+dfsg-0+deb12u1· arm64 · bookworm-securityNot affected
dsa · p7zip · debian · bookworm
[Debian 13 (Trixie)]
- [7zip]Fixed
Details (2)
25.01+dfsg-1~deb13u2· amd64 · trixieFixed · Fixed:
24.07+dfsg-1dsa · 7zip · debian · 13
25.01+dfsg-1~deb13u2· arm64 · trixieFixed · Fixed:
24.07+dfsg-1dsa · 7zip · debian · 13
- [7zip-standalone]Fixed
Source package: [7zip]
Details (2)
25.01+dfsg-1~deb13u2· amd64 · trixieFixed · Fixed:
24.07+dfsg-1dsa · 7zip · debian · 13
25.01+dfsg-1~deb13u2· arm64 · trixieFixed · Fixed:
24.07+dfsg-1dsa · 7zip · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2025_15531-1.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2024-11477]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2024-11477]
- [https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2025/icsa-25-184-03.json]
- [https://security-tracker.debian.org/tracker/CVE-2024-11477]
- [https://wid.cert-bund.de/.well-known/csaf/white/2024/wid-sec-w-2024-3512.json]
[CERT-Bund public advisories] · [CISA cybersecurity advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]