CVE catalog
CVE-2025-43971
GoBGP vulnerabilities
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.55% · Oct 25, 2026
An issue was discovered in GoBGP before 3.35.0. pkg/packet/bgp/bgp.go allows attackers to cause a panic via a zero value for softwareVersionLen.
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 | gobgp | sid | 4.8.0-1 | fixed |
| Debian | gobgp | forky | 4.8.0-1 | fixed |
| Debian | gobgp | trixie | 3.36.0-2 | fixed |
| Debian | gobgp | bookworm | 3.10.0-1 | vulnerable |
| Ubuntu | gobgp | noble | Not reported | vulnerable |
| Ubuntu | gobgp | noble | 3.23.0-1ubuntu0.3+esm2 | fixed |
| Ubuntu | gobgpd | noble | 3.23.0-1ubuntu0.3+esm2 | fixed |
| Ubuntu | golang-github-osrg-gobgp-dev | noble | 3.23.0-1ubuntu0.3+esm2 | fixed |
| Ubuntu | gobgp | pro | 3.16.0-1build1 | vulnerable |
| Ubuntu | gobgp | pro | 3.19.0-1 | vulnerable |
| Ubuntu | gobgp | pro | 3.21.0-1 | vulnerable |
| Ubuntu | gobgp | pro | 3.23.0-1 | vulnerable |
| Ubuntu | gobgp | pro | 3.23.0-1ubuntu0.1 | vulnerable |
| Ubuntu | gobgp | pro | 3.23.0-1ubuntu0.2 | vulnerable |
| Ubuntu | gobgp | pro | 3.23.0-1ubuntu0.2+esm1 | vulnerable |
| Ubuntu | gobgp | pro | 3.23.0-1ubuntu0.3 | vulnerable |
| Ubuntu | gobgp | pro | 3.23.0-1ubuntu0.3+esm1 | vulnerable |
| Ubuntu | gobgp | pro | 3.23.0-1ubuntu0.3+esm2 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | gobgp | source | sid | 3.35.0-1 | not yet assigned | Not reported | Not reported |
| Debian | gobgp | source | forky | 3.35.0-1 | not yet assigned | Not reported | Not reported |
| Debian | gobgp | source | trixie | 3.35.0-1 | not yet assigned | Not reported | Not reported |
| Debian | gobgp | source | bookworm | (unfixed) | not yet assigned | Not reported | Not reported |
| Ubuntu | gobgp | deb | noble | 3.23.0-1ubuntu0.3+esm2 | Not reported | Not reported | Not reported |
| Ubuntu | gobgpd | deb | noble | 3.23.0-1ubuntu0.3+esm2 | Not reported | Not reported | Not reported |
| Ubuntu | golang-github-osrg-gobgp-dev | deb | noble | 3.23.0-1ubuntu0.3+esm2 | Not reported | Not reported | Not reported |
| Ubuntu | gobgp | deb | pro | 3.23.0-1ubuntu0.3+esm2 | Not reported | UBUNTU-CVE-2025-43971 | Not reported |
Notes
[bookworm] gobgp: Minor issue
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [gobgpd]Affected
Source package: [gobgp]
Details (2)
3.10.0-1+b4· amd64 · bookwormAffected
usn · gobgp · debian · bookworm; usn · gobgp · debian · 12
3.10.0-1+b4· arm64 · bookwormAffected
usn · gobgp · debian · bookworm; usn · gobgp · debian · 12
- [golang-github-osrg-gobgp-dev]Affected
Source package: [gobgp]
Details (2)
3.10.0-1· all · bookwormAffected
usn · gobgp · debian · bookworm; usn · gobgp · debian · 12
3.10.0-1· all · bookwormAffected
usn · gobgp · debian · bookworm; usn · gobgp · debian · 12
[Debian 13 (Trixie)]
- [gobgpd]Fixed
Source package: [gobgp]
Details (4)
3.36.0-2+b3· amd64 · trixieFixed · Fixed:
3.35.0-1usn · gobgp · debian · 13
3.36.0-2+b3· arm64 · trixieFixed · Fixed:
3.35.0-1usn · gobgp · debian · 13
4.7.0-1~bpo13+1· amd64 · trixie-backportsFixed · Fixed:
3.35.0-1usn · gobgp · debian · 13
4.7.0-1~bpo13+1· arm64 · trixie-backportsFixed · Fixed:
3.35.0-1usn · gobgp · debian · 13
- [golang-github-osrg-gobgp-dev]Fixed
Source package: [gobgp]
Details (4)
3.36.0-2· all · trixieFixed · Fixed:
3.35.0-1usn · gobgp · debian · 13
3.36.0-2· all · trixieFixed · Fixed:
3.35.0-1usn · gobgp · debian · 13
4.7.0-1~bpo13+1· all · trixie-backportsFixed · Fixed:
3.35.0-1usn · gobgp · debian · 13
4.7.0-1~bpo13+1· all · trixie-backportsFixed · Fixed:
3.35.0-1usn · gobgp · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2025_15017-1.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2025-43971]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2025-43971]
- [https://security-tracker.debian.org/tracker/CVE-2025-43971]
- [https://ubuntu.com/security/notices/USN-7661-1]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX] · [Ubuntu Security Notices (USN)]