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CVE-2013-4545

15
FAUCET Score

CVE-2013-4545 describes a vulnerability in cURL and libcurl versions 7.18.0 through 7.32.0, specifically when compiled with OpenSSL. This flaw allows man-in-the-middle attackers to spoof SSL servers by presenting any valid certificate, as the certificate's common name (CN) and Subject Alternative Name (SAN) verification is inadvertently disabled when digital signature verification is turned off. The vulnerability has a CVSS score of 4.3 (medium severity), indicating a network-based attack with medium complexity and a potential impact on integrity. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
7.18.0CPE matchmatch criteria
cpe:2.3:a:haxx:curl:7.18.0:*:*:*:*:*:*:*
7.18.1CPE matchmatch criteria
cpe:2.3:a:haxx:curl:7.18.1:*:*:*:*:*:*:*
7.18.2CPE matchmatch criteria
cpe:2.3:a:haxx:curl:7.18.2:*:*:*:*:*:*:*
7.19.0CPE matchmatch criteria
cpe:2.3:a:haxx:curl:7.19.0:*:*:*:*:*:*:*
7.19.1CPE matchmatch criteria
cpe:2.3:a:haxx:curl:7.19.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.08%
Probability of exploitation in next 30 days
EPSS Percentile
86.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0308 is in the 80th percentile among its peer group of 19,958 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 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

Patch Available

Vendor Patches (2)

jitsipatch availablevia llm_extracted
Fixed in: 7.32.0
View patch
sierra_wirelesspatch availablevia llm_extracted
Fixed in: 7.32.0
View patch

Vendor Advisories (3)

redhatCVE-2013-4545Low

curl: TLS/SSL certificate name check disabled with peer verification

Nov 15, 2013
sierra_wirelessllm-sierra_wireless-0bf0ece726294a76MEDIUM

cert name check ignore OpenSSL

Nov 15, 2013
jitsillm-jitsi-90826b5da658a364MEDIUM

cert name check ignore OpenSSL

Nov 15, 2013

References

curl.haxx.se / docs/adv_20131115.html
Vendor Advisory
lists.opensuse.org / opensuse-updates/2013-12/msg00047.html
lists.opensuse.org / opensuse-updates/2013-12/msg00053.html
h20564.www2.hp.com / hpsc/doc/public/display
debian.org / security/2013/dsa-2798
oracle.com / technetwork/topics/security/cpuapr2015-2365600.html
oracle.com / technetwork/topics/security/cpujan2015-1972971.html
oracle.com / technetwork/topics/security/cpujul2015-2367936.html
ubuntu.com / usn/USN-2048-1