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CVE-2011-3453

26
FAUCET Score

CVE-2011-3453 describes an integer overflow vulnerability in libresolv affecting Apple Mac OS X before version 10.7.3. This flaw allows remote attackers to execute arbitrary code or trigger a denial of service through heap memory corruption and application crashes by sending specially crafted DNS data. With a CVSS score of 7.5, it is considered highly severe due to its network-based attack vector, low attack complexity, and potential for partial confidentiality, integrity, and availability impact. Despite its severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 10.7.2CPE matchmatch criteria
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
10.7.0CPE matchmatch criteria
cpe:2.3:o:apple:mac_os_x:10.7.0:*:*:*:*:*:*:*
10.7.1CPE matchmatch criteria
cpe:2.3:o:apple:mac_os_x:10.7.1:*:*:*:*:*:*:*
<= 10.7.2CPE matchmatch criteria
cpe:2.3:o:apple:mac_os_x_server:*:*:*:*:*:*:*:*
10.7.0CPE matchmatch criteria
cpe:2.3:o:apple:mac_os_x_server:10.7.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.72%
Probability of exploitation in next 30 days
EPSS Percentile
88.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0372 is in the 80th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

applevendor investigatingvia nvd_reference
View patch

References

lists.apple.com / archives/security-announce/2012/Feb/msg00000.html
Vendor Advisory
lists.apple.com / archives/security-announce/2012/Mar/msg00001.html
lists.apple.com / archives/security-announce/2012/Mar/msg00002.html
secunia.com / advisories/48288
secunia.com / advisories/48289
support.apple.com / kb/HT5130
Vendor Advisory
securitytracker.com / id