7.5

CVE-2026-7734: osrg gobgp Improper Resource Shutdown or Release

CVSS: 7.5v3.1HighAnalyzed
AliasesUBUNTU-CVE-2026-7734DEBIAN-CVE-2026-7734GHSA-vm3g-8xwv-mxfp
Published 04-05-2026Last modified 04-05-2026
Open JSON

Vulnerability summary

CVE-2026-7734 is a high (CVSS 7.5) Improper Resource Shutdown or Release vulnerability in osrg gobgp. EPSS estimates a 0.85% chance of exploitation in the next 30 days, higher than 57.5% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
0.85%
0%100%
Low · +0.39 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 2
OPENSUSE-SU-2026:21483-1USN-8348-1

Timeline

  1. 04-05-2026
    PublishedVulnerability first disclosed.
  2. 04-05-2026
    Last modifiedVulnerability information updated.

Description

A vulnerability has been found in osrg GoBGP up to 4.3.0. This impacts the function SRv6L3ServiceAttribute.DecodeFromBytes of the file pkg/packet/bgp/prefix_sid.go of the component SRv6 L3 Service. Such manipulation of the argument data leads to denial of service. The attack may be performed from remote. Upgrading to version 4.4.0 will fix this issue. The name of the patch is f9f7b55ec258e514be0264871fa645a2c3edad11. You should upgrade the affected component.

CVSS metrics

12 scores · 5 sources · 4 versions

EPSS trend

Probability

0.85%

Chance of exploitation in the next 30 days

Percentile

58%

Versus all other CVEs

30-day change

+0.39 pp

From 0.46% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.85%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • gobgpAll versions (No fix recorded) | < 4.4.0-1
Github.com/osrg/gobgp1 product
  • v4< 4.4.0
Osrg1 product
  • gobgp4.0 | 4.1 | 4.2 | 4.3.0 | < 4.4.0
Ubuntu1 product
  • gobgp< 2.25.0-3ubuntu0.1+esm4 | < 3.23.0-1ubuntu0.3+esm4 | All versions (No fix recorded) | < 3.36.0-2ubuntu0.1~esm1

4 vendors · 4 products

References

13 links
Show all 13 references