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CVE-2014-2522: haxx curl Improper Input Validation

CVSS: 4.0v2.0MediumModified
Published 18-04-2014Last modified 06-08-2024
Open JSON

Vulnerability summary

CVE-2014-2522 is a medium (CVSS 4.0) Improper Input Validation vulnerability in haxx curl. EPSS estimates a 2.65% chance of exploitation in the next 30 days, higher than 85.4% of scored vulnerabilities.

Overall risk
17/100
0100
Low · default modelHow is this calculated?
CVSS score
4.0/10
010
Medium · v2.0 (NVD)
EPSS score
2.65%
0%100%
Low · +0.07 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 18-04-2014
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

curl and libcurl 7.27.0 through 7.35.0, when running on Windows and using the SChannel/Winssl TLS backend, does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate when accessing a URL that uses a numerical IP address, which allows man-in-the-middle attackers to spoof servers via an arbitrary valid certificate.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

2.65%

Chance of exploitation in the next 30 days

Percentile

85%

Versus all other CVEs

30-day change

+0.07 pp

From 2.58% on 19-09-2026

19-09-202619-10-2026
EPSS score
2.65%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Haxx2 products
  • curl7.27.0 | 7.28.0 | 7.28.1 | 7.29.0 | 7.30.0 | 7.31.0 | 7.32.0 | 7.33.0 | 7.34.0 | 7.35.0
  • libcurl7.27.0 | 7.28.0 | 7.28.1 | 7.29.0 | 7.30.0 | 7.31.0 | 7.32.0 | 7.33.0 | 7.34.0 | 7.35.0 | 7.36.0

1 vendor · 2 products

References

12 links
Show all 12 references