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CVE-2014-3484

30
FAUCET Score

CVE-2014-3484 describes multiple stack-based buffer overflows in the __dn_expand function within musl libc versions 1.1.x before 1.1.2 and 0.9.13 through 1.0.3. This critical vulnerability (CVSS 9.8) allows remote attackers to cause a denial of service (crash) or achieve unspecified impact via an invalid name length in a DNS response, potentially leading to an infinite loop. While there is no evidence of active exploitation, nor publicly available exploit code in Metasploit, Nuclei, or ExploitDB, the vulnerability has garnered significant community discussion with 10 mentions, indicating awareness among security researchers.

Impacted Technologies

VendorProductVersion(s)CPE
>= 0.9.13, <= 1.0.3CPE matchmatch criteria
cpe:2.3:a:musl-libc:musl:*:*:*:*:*:*:*:*
>= 1.1.0, < 1.1.2CPE matchmatch criteria
cpe:2.3:a:musl-libc:musl:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.20%
Probability of exploitation in next 30 days
EPSS Percentile
80.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0220 is in the 70th percentile among its peer group of 36,833 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

git.musl-libc.org / cgit/musl/commit
Patch
seclists.org / oss-sec/2014/q2/495
Mailing ListPatchThird Party Advisory