CVE-2013-2492Firebird Memory Corruption
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…
Published Mar 15, 2013 · Updated Apr 28, 2026 · Also known as DEBIAN-CVE-2013-2492, DSA-2647-1, UBUNTU-CVE-2013-2492
Key Facts
Routine patching- CVE-2013-2492 is a medium-severity vulnerability (CVSS 6.8 v2) affecting Firebird (Firebirdsql), firebird2.1 (debian), firebird2.5 (debian) and 10 more products.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 42% probability of exploitation in the next 30 days.
- Fixed versions are available, including Firebird 3.0.1.32609-1.3, firebird-doc 3.0.1.32609-1.3, firebird-examples 3.0.1.32609-1.3.
- Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.
Scores
CVSS v2
6.8
AV:N/AC:M/Au:N/C:P/I:P/A:P
EPSS (30-day exploit likelihood)
42%
Higher than 98.6% of all scored CVEs
Exploit maturity
Weaponized
ATLAS score
54/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Weaponized
Public exploit code
3
Proof-of-concept links
In-the-wild evidence
1
Reports of active use
Advisories And Exploit References
Description
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.
Affected Products
19 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| FirebirdFirebirdsql | 2.1.3, 2.1.4, 2.1.5, 2.5.1, 2.5.2, 2.5.3 | 3.0.1.32609-1.3 |
| firebird2.1debian | See advisory | 2.1.3.18185-0.ds1-11+squeeze1 |
| firebird2.5debian | See advisory | 2.5.0.26054~ReleaseCandidate3.ds2-1+squeeze1 |
| firebird-docsuse | See advisory | 3.0.1.32609-1.3 |
| firebird-examplessuse | See advisory | 3.0.1.32609-1.3 |
Patched Releases
Firebird
3.0.1.32609-1.3
firebird-doc
3.0.1.32609-1.3
firebird-examples
3.0.1.32609-1.3
firebird-server
3.0.1.32609-1.3
firebird-utils
3.0.1.32609-1.3
firebird2.1
2.1.3.18185-0.ds1-11+squeeze1
firebird2.5
2.5.0.26054~ReleaseCandidate3.ds2-1+squeeze1
libfbclient-devel
3.0.1.32609-1.3
libfbclient2
3.0.1.32609-1.3
libfbclient2-32bit
3.0.1.32609-1.3
libib_util
3.0.1.32609-1.3
libib_util-32bit
3.0.1.32609-1.3
libib_util-devel
3.0.1.32609-1.3
Timeline
Publicly disclosed
Mar 15, 2013
Last updated
Apr 28, 2026
Weakness Type
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References
- advisoryubuntu.com · CVE-2013-2492
- advisorycve.org · CVERecord
- exploitgist.github.com · 85daef2
- exploitMSF fb_cnct_group.rb
- exploitExploitDB-41709
FAQ
Common Questions.
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.
Affected: Firebird (Firebirdsql) versions 2.1.3, 2.1.4, 2.1.5, 2.5.1, 2.5.2, 2.5.3; firebird2.1 (debian); firebird2.5 (debian), among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Firebird 3.0.1.32609-1.3, firebird-doc 3.0.1.32609-1.3, firebird-examples 3.0.1.32609-1.3.
Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.
Is CVE-2013-2492 On Your Attack Surface?
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