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Fencer Intel
medium 6.8

CVE-2013-2492 json

Stack-based buffer overflow in Firebird 2.1.3 through 2.1.5 before 18514, and 2.5.1 through 2.5.3 before 26623, on Windows allows remote at…

published 13y ago modified 4mo ago also EUVD-2013-2438

cvss
6.8
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
42.2%
EPSS 42.2% chance of exploitation in 30 days, percentile 98%
public exploits
2
Metasploit and Exploit-DB

Summary

Stack-based buffer overflow in Firebird 2.1.3 through 2.1.5 before 18514, and 2.5.1 through 2.5.3 before 26623, on Windows allows remote attackers to execute arbitrary code via a crafted packet to TCP port 3050, related to a missing size check during extraction of a group number from CNCT information.

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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-2013-2492 updated cvss 7.5

Firebird: CNCT info remote stack buffer overflow

  • Red Hat All currently supported Red Hat products
    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. First public exploit (Metasploit exploit/windows/misc/fb_cnct_group)
  2. Published

Exploit prediction

42.17% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • Metasploit exploit/windows/misc/fb_cnct_group Firebird Relational Database CNCT Group Number Buffer Overflow metasploit exploit, normal rank, 2013-01-31
  • EDB-41709 Firebird - Relational Database CNCT Group Number Buffer Overflow (Metasploit) local, 2013-01-31
  • gist.github.com https://gist.github.com/zeroSteiner/85daef257831d904479c referenced PoC, tagged "exploit" by a source, unverified
  • tracker.firebirdsql.org http://tracker.firebirdsql.org/browse/CORE-4058 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
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 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.