CVE-2013-2174
Heap-based buffer overflow in the curl_easy_unescape function in lib/escape.c in cURL and libcurl 7.7 through 7.30.0 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted string ending in a "%" (percent) character.
Key facts
- CVSS score
- 6.8 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:M/Au:N/C:P/I:P/A:P- Weakness (CWE)
- CWE-119
- EPSS score
- 9.8% (96th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2013-2133)
- Published
- July 31, 2013
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2013-2133 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.
View on the EU Vulnerability DatabaseAffected products
- canonical / ubuntu linux
- canonical / ubuntu linux
- canonical / ubuntu linux
- canonical / ubuntu linux
- haxx / curl
- haxx / curl
- haxx / curl
- haxx / curl
- haxx / curl
- haxx / curl
- haxx / curl
- haxx / curl
- haxx / curl
- haxx / curl
- haxx / curl
- haxx / curl
- haxx / curl
- haxx / curl
- haxx / curl
- haxx / curl
- haxx / curl
- haxx / curl
- haxx / curl
- haxx / curl
- haxx / curl
- haxx / curl
- haxx / curl
- haxx / curl
- haxx / curl
- haxx / curl
- haxx / curl
- haxx / curl
- haxx / curl
- haxx / curl
- haxx / curl
- haxx / curl
- haxx / curl
- haxx / curl
- haxx / curl
- haxx / curl
- haxx / curl
- haxx / curl
- haxx / curl
- haxx / curl
- haxx / curl
- haxx / curl
- haxx / curl
- haxx / curl
- haxx / curl
- haxx / curl
and 119 more…
Certified products that may be affected
6 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.
- Red Hat Enterprise Linux 5 OpenSSH-Server Cryptographic Module - Red Hat®, Inc. - FIPS 140 1384 - historical
- Red Hat Enterprise Linux 5 OpenSSH Client Cryptographic Module - Red Hat®, Inc. - FIPS 140 1385 - historical
- Red Hat Enterprise Linux 5 OpenSwan Cryptographic Module - Red Hat®, Inc. - FIPS 140 1386 - historical
- Red Hat Enterprise Linux 5 Kernel Crypto API Cryptographic Module - Red Hat®, Inc. - FIPS 140 1387 - historical
- Red Hat Enterprise Linux 5 OpenSSL Cryptographic Module - Red Hat®, Inc. - FIPS 140 1320 - historical
See all 6 in the Security Certifications Explorer.
References
- http://curl.haxx.se/docs/adv_20130622.html(Vendor Advisory)
- http://lists.opensuse.org/opensuse-updates/2013-07/msg00013.html
- http://rhn.redhat.com/errata/RHSA-2013-0983.html
- http://www.debian.org/security/2013/dsa-2713
- http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html
- http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
- http://www.securityfocus.com/bid/60737
- http://www.ubuntu.com/usn/USN-1894-1
- https://github.com/bagder/curl/commit/192c4f788d48f82c03e9cef40013f34370e90737(Exploit, Patch)
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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