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CVE-2012-2657

13
FAUCET Score

CVE-2012-2657 describes a buffer overflow vulnerability in the SQLDriverConnect function of unixODBC versions 2.0.10, 2.3.1, and earlier. A local attacker could trigger a denial of service by providing a long string to the FILEDSN option. While rated with a low CVSS score (AV:L/AC:L/Au:N/C:N/I:N/A:P) indicating local access and low complexity, its exploitability is limited as it typically requires pre-existing access, potentially not crossing privilege boundaries. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.3.1CPE matchmatch criteria
cpe:2.3:a:unixodbc:unixodbc:*:*:*:*:*:*:*:*
2.0.10CPE matchmatch criteria
cpe:2.3:a:unixodbc:unixodbc:2.0.10:*:*:*:*:*:*:*
2.3.0CPE matchmatch criteria
cpe:2.3:a:unixodbc:unixodbc:2.3.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

2.1LOW

AV:L/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.44%
Probability of exploitation in next 30 days
EPSS Percentile
36.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0044 is in the 67th percentile among its peer group of 2,096 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.6 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (4)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: unixODBC
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: unixODBC
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: unixODBC64
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: unixODBC

Vendor Advisories (1)

redhatCVE-2012-2657Low

unixodbc: buffer overflow due to improper checking of FILESDN= input

May 29, 2012

References

exchange.xforce.ibmcloud.com / vulnerabilities/75940
openwall.com / lists/oss-security/2012/05/29/10
openwall.com / lists/oss-security/2012/05/29/7
openwall.com / lists/oss-security/2012/05/30/7
openwall.com / lists/oss-security/2012/05/31/2
openwall.com / lists/oss-security/2012/06/06/3
osvdb.org / 82460
securityfocus.com / bid/53712