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Fencer Vulns
critical 9.6

CVE-2017-11309 json

Buffer overflow in the SoftConsole client in Avaya IP Office before 10.1.1 allows remote servers to execute arbitrary code via a long respo…

published 2017-11-09 8 y ago modified 2026-06-17 4 mo ago also EUVD-2017-2943

cvss
9.6
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
9.4%
EPSS 9.4% chance of exploitation in 30 days, percentile 95%
public exploits
1
Exploit-DB

Summary

Buffer overflow in the SoftConsole client in Avaya IP Office before 10.1.1 allows remote servers to execute arbitrary code via a long response.

Patch / fix

  • avaya ip_office 10.1.1

Timeline

  1. First public exploit (EDB-43121)
  2. Published

Exploit prediction

9.40% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-43121 Avaya IP Office (IPO) < 10.1 - 'SoftConsole' Remote Buffer Overflow (SEH) remote, 2017-11-05
  • packetstormsecurity.com http://packetstormsecurity.com/files/144883/Avaya-IP-Office-IPO-10.1-Soft-Console-Remote-Buffer-Overflow.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 9.6 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

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.