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Fencer Vulns
critical 9.8

CVE-2016-2385 in the critical feed json

Heap-based buffer overflow in the encode_msg function in encode_msg.c in the SEAS module in Kamailio (formerly OpenSER and SER) before 4.3.…

published 2016-04-11 10 y ago modified 2026-06-17 4 mo ago also EUVD-2016-3469

cvss
9.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
29.2%
EPSS 29.2% chance of exploitation in 30 days, percentile 98%
public exploits
1
Exploit-DB

Summary

Heap-based buffer overflow in the encode_msg function in encode_msg.c in the SEAS module in Kamailio (formerly OpenSER and SER) before 4.3.5 allows remote attackers to cause a denial of service (memory corruption and process crash) or possibly execute arbitrary code via a large SIP packet.

Patch / fix

  • kamailio Debian 14, Debian 13, Debian 12 4.3.4-2

debian advisories DEBIAN-CVE-2016-2385

  • kamailio Ubuntu Pro 16.04 LTS 4.3.4-1.1ubuntu2.1+esm2

ubuntu advisories UBUNTU-CVE-2016-2385

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Timeline

  1. First public exploit (EDB-39638)
  2. Published

Exploit prediction

29.22% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-39638 Kamailio 4.3.4 - Heap Buffer Overflow dos, 2016-03-30
  • github.com https://github.com/kamailio/kamailio/commit/f50c9c853e7809810099c970780c30b0765b0643 referenced PoC, tagged "exploit" by a source, unverified
  • packetstormsecurity.com http://packetstormsecurity.com/files/136477/Kamailio-4.3.4-Heap-Overflow.html referenced PoC, tagged "exploit" by a source, unverified
  • census-labs.com https://census-labs.com/news/2016/03/30/kamailio-seas-heap-overflow/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

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.