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Fencer Vulns
critical 10.0

CVE-2023-6269 json

Argument injection vulnerability in Atos Unify OpenScape Session Border Controller, Atos Unify OpenScape Branch and Atos Unify OpenScape BCF

published 2023-12-05 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-58513

cvss
10.0
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.9%
EPSS 1.9% chance of exploitation in 30 days, percentile 79%
public exploits
0
none known

Summary

An argument injection vulnerability has been identified in the administrative web interface of the Atos Unify OpenScape products "Session Border Controller" (SBC) and "Branch", before version V10 R3.4.0, and OpenScape "BCF" before versions V10R10.12.00 and V10R11.05.02. This allows an unauthenticated attacker to gain root access to the appliance via SSH (scope change) and also bypass authentication for the administrative interface and gain access as an arbitrary (administrative) user.

Patch / fix

  • Atos Unify OpenScape Session Border Controller (SBC) V10 R3.4.0
  • Atos Unify OpenScape Branch V10 R3.4.0
  • Atos Unify OpenScape BCF V10 R10.12.00, V10R 11.05.02

Exploit prediction

1.86% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • r.sec-consult.com https://r.sec-consult.com/unifyroot referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 10.0 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Atos Unify OpenScape Session Border Controller (SBC)
  • Atos Unify OpenScape Branch
  • Atos Unify OpenScape BCF

Classification

Weakness
  • CWE-88 Improper Neutralization of Argument Delimiters in a Command

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.