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Fencer Intel
low 3.3

CVE-2012-1593 json

epan/dissectors/packet-ansi_a.c in the ANSI A dissector in Wireshark 1.4.x before 1.4.12 and 1.6.x before 1.6.6 allows remote attackers to…

published 2012-04-11 14 y ago modified 2026-06-16 4 mo ago also EUVD-2012-1607

cvss
3.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
11.2%
EPSS 11.2% chance of exploitation in 30 days, percentile 95%
public exploits
1
Exploit-DB

Summary

epan/dissectors/packet-ansi_a.c in the ANSI A dissector in Wireshark 1.4.x before 1.4.12 and 1.6.x before 1.6.6 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a malformed packet.

Patch / fix

  • wireshark Debian 14, Debian 13, Debian 12 1.6.6-1

debian advisories DEBIAN-CVE-2012-1593

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2012-1593 updated cvss 4.3

wireshark: NULL pointer dereference in ANSI A dissector

  • Red Hat Enterprise Linux 5 wireshark Red Hat Enterprise Linux 6 wireshark, wireshark-gnome
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Timeline

  1. Published
  2. First public exploit (EDB-18758)

Exploit prediction

11.17% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-18758 Wireshark - 'call_dissector()' Null Pointer Dereference Denial of Service dos, 2012-04-19

CVSS scores

assigned by version score vector
NVD 2.0 3.3 AV:A/AC:L/Au:N/C:N/I:N/A:P

References

Sources

Fencer Intel 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.