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Fencer Intel
high 7.5

CVE-2012-0036 in the critical feed json

curl and libcurl 7.2x before 7.24.0 do not properly consider special characters during extraction of a pathname from a URL, which allows re…

published 2012-04-13 14 y ago modified 2026-06-16 4 mo ago also EUVD-2012-0076

cvss
7.5
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
16.1%
EPSS 16.1% chance of exploitation in 30 days, percentile 96%
public exploits
0
none known

Summary

curl and libcurl 7.2x before 7.24.0 do not properly consider special characters during extraction of a pathname from a URL, which allows remote attackers to conduct data-injection attacks via a crafted URL, as demonstrated by a CRLF injection attack on the (1) IMAP, (2) POP3, or (3) SMTP protocol.

Patch / fix

  • haxx curl 7.24.0
  • haxx libcurl 7.24.0
  • curl Debian 14, Debian 13, Debian 12 7.24.0-1

debian advisories DEBIAN-CVE-2012-0036

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2012-0036 updated cvss 5.8

curl: URL sanitization vulnerability

  • Red Hat Enterprise Linux 4 curl Red Hat Enterprise Linux 5 curl Red Hat Enterprise Linux 6 curl, libcurl
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

16.12% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-89 Improper Neutralization of Special Elements used in an SQL Command

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Improve affected version range and add fix versions.