CVE-2010-0734

content_encoding.c in libcurl 7.10.5 through 7.19.7, when zlib is enabled, does not properly restrict the amount of callback data sent to an application that requests automatic decompression, which might allow remote attackers to cause a denial of service (application crash) or have unspecified other impact by sending crafted compressed data to an application that relies on the intended data-length limit.

Published: 2010-03-19 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2010-0734 is rated Moderate Risk (58.7/100): CVSS Medium severity, with high exploitation likelihood (EPSS 5.48%, 90th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2010-0734

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-23 5.62% 5.48% -0.14%
2 2026-05-10 6.60% 5.62% -0.98%
3 2026-05-05 — 6.60% —

Full EPSS history (13 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2010-0734

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.8 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 6.4 [email protected]

Weakness enumeration for CVE-2010-0734

OS Trackers for CVE-2010-0734

vendor priority summary link
debian low CVE-2010-0734 low priority: Debian including 1 source packages (curl), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2010-0734
gentoo normal CVE-2010-0734: 1 GLSA(s) (201203-02), 1 atom(s) (net-misc/curl); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2010-0734
redhat medium — https://access.redhat.com/security/cve/CVE-2010-0734
ubuntu low CVE-2010-0734 low priority: Ubuntu including 1 source packages (curl), 9 status rows across 9 suites (dapper, hardy, intrepid, jaunty, karmic, lucid, maverick, natty, upstream): ignored 4, released 3, not-affected 2. https://ubuntu.com/security/CVE-2010-0734

Affected software / configurations for CVE-2010-0734

Vendor Product Version Raw CPE
curl libcurl 7.10.5 cpe:2.3:a:curl:libcurl:7.10.5:*:*:*:*:*:*:*
curl libcurl 7.10.6 cpe:2.3:a:curl:libcurl:7.10.6:*:*:*:*:*:*:*
curl libcurl 7.10.7 cpe:2.3:a:curl:libcurl:7.10.7:*:*:*:*:*:*:*
curl libcurl 7.10.8 cpe:2.3:a:curl:libcurl:7.10.8:*:*:*:*:*:*:*
curl libcurl 7.11.0 cpe:2.3:a:curl:libcurl:7.11.0:*:*:*:*:*:*:*
curl libcurl 7.11.1 cpe:2.3:a:curl:libcurl:7.11.1:*:*:*:*:*:*:*
curl libcurl 7.11.2 cpe:2.3:a:curl:libcurl:7.11.2:*:*:*:*:*:*:*
curl libcurl 7.12 cpe:2.3:a:curl:libcurl:7.12:*:*:*:*:*:*:*
curl libcurl 7.12.0 cpe:2.3:a:curl:libcurl:7.12.0:*:*:*:*:*:*:*
curl libcurl 7.12.1 cpe:2.3:a:curl:libcurl:7.12.1:*:*:*:*:*:*:*
curl libcurl 7.12.2 cpe:2.3:a:curl:libcurl:7.12.2:*:*:*:*:*:*:*
curl libcurl 7.12.3 cpe:2.3:a:curl:libcurl:7.12.3:*:*:*:*:*:*:*
curl libcurl 7.13 cpe:2.3:a:curl:libcurl:7.13:*:*:*:*:*:*:*
curl libcurl 7.13.1 cpe:2.3:a:curl:libcurl:7.13.1:*:*:*:*:*:*:*
curl libcurl 7.13.2 cpe:2.3:a:curl:libcurl:7.13.2:*:*:*:*:*:*:*
curl libcurl 7.14 cpe:2.3:a:curl:libcurl:7.14:*:*:*:*:*:*:*
curl libcurl 7.14.1 cpe:2.3:a:curl:libcurl:7.14.1:*:*:*:*:*:*:*
curl libcurl 7.15 cpe:2.3:a:curl:libcurl:7.15:*:*:*:*:*:*:*
curl libcurl 7.15.1 cpe:2.3:a:curl:libcurl:7.15.1:*:*:*:*:*:*:*
curl libcurl 7.15.2 cpe:2.3:a:curl:libcurl:7.15.2:*:*:*:*:*:*:*
curl libcurl 7.15.3 cpe:2.3:a:curl:libcurl:7.15.3:*:*:*:*:*:*:*
curl libcurl 7.16.3 cpe:2.3:a:curl:libcurl:7.16.3:*:*:*:*:*:*:*
curl libcurl 7.17.0 cpe:2.3:a:curl:libcurl:7.17.0:*:*:*:*:*:*:*
curl libcurl 7.17.1 cpe:2.3:a:curl:libcurl:7.17.1:*:*:*:*:*:*:*
curl libcurl 7.18.0 cpe:2.3:a:curl:libcurl:7.18.0:*:*:*:*:*:*:*
curl libcurl 7.18.1 cpe:2.3:a:curl:libcurl:7.18.1:*:*:*:*:*:*:*
curl libcurl 7.18.2 cpe:2.3:a:curl:libcurl:7.18.2:*:*:*:*:*:*:*
curl libcurl 7.19.0 cpe:2.3:a:curl:libcurl:7.19.0:*:*:*:*:*:*:*
curl libcurl 7.19.1 cpe:2.3:a:curl:libcurl:7.19.1:*:*:*:*:*:*:*
curl libcurl 7.19.2 cpe:2.3:a:curl:libcurl:7.19.2:*:*:*:*:*:*:*
curl libcurl 7.19.3 cpe:2.3:a:curl:libcurl:7.19.3:*:*:*:*:*:*:*
curl libcurl 7.19.4 cpe:2.3:a:curl:libcurl:7.19.4:*:*:*:*:*:*:*
curl libcurl 7.19.5 cpe:2.3:a:curl:libcurl:7.19.5:*:*:*:*:*:*:*
curl libcurl 7.19.6 cpe:2.3:a:curl:libcurl:7.19.6:*:*:*:*:*:*:*
curl libcurl 7.19.7 cpe:2.3:a:curl:libcurl:7.19.7:*:*:*:*:*:*:*

References for CVE-2010-0734

URL Tags
http://curl.haxx.se/docs/adv_20100209.html Vendor Advisory
http://curl.haxx.se/docs/security.html#20100209 Vendor Advisory
http://curl.haxx.se/libcurl-contentencoding.patch Patch
http://lists.apple.com/archives/security-announce/2010//Jun/msg00001.html
http://lists.fedoraproject.org/pipermail/package-announce/2010-March/036744.html
http://lists.fedoraproject.org/pipermail/package-announce/2010-March/037143.html
http://secunia.com/advisories/38843
http://secunia.com/advisories/38981
http://secunia.com/advisories/39087
http://secunia.com/advisories/39734
http://secunia.com/advisories/40220
http://secunia.com/advisories/45047
http://secunia.com/advisories/48256
http://security.gentoo.org/glsa/glsa-201203-02.xml
http://support.apple.com/kb/HT4188
http://support.avaya.com/css/P8/documents/100081819
http://wiki.rpath.com/Advisories:rPSA-2010-0072
http://www.debian.org/security/2010/dsa-2023
http://www.mandriva.com/security/advisories?name=MDVSA-2010:062
http://www.openwall.com/lists/oss-security/2010/02/09/5 Patch
http://www.openwall.com/lists/oss-security/2010/03/09/1 Patch
http://www.openwall.com/lists/oss-security/2010/03/16/11 Patch
http://www.redhat.com/support/errata/RHSA-2010-0329.html
http://www.securityfocus.com/archive/1/514490/100/0/threaded
http://www.securityfocus.com/archive/1/516397/100/0/threaded
http://www.ubuntu.com/usn/USN-1158-1
http://www.vmware.com/security/advisories/VMSA-2011-0003.html
http://www.vupen.com/english/advisories/2010/0571
http://www.vupen.com/english/advisories/2010/0602
http://www.vupen.com/english/advisories/2010/0660
http://www.vupen.com/english/advisories/2010/0725
http://www.vupen.com/english/advisories/2010/1481
https://bugzilla.redhat.com/show_bug.cgi?id=563220
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10760
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6756
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