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CVE-2010-0734

20
FAUCET Score

CVE-2010-0734 describes a denial-of-service vulnerability in libcurl versions 7.10.5 through 7.19.7 when zlib is enabled. This flaw allows remote attackers to crash an application or achieve other unspecified impacts by sending specially crafted compressed data, due to libcurl not properly limiting callback data during automatic decompression. With a CVSS score of 6.8, it is considered medium severity, requiring medium attack complexity but allowing unauthenticated network access to potentially impact confidentiality, integrity, and availability. 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
7.10.5CPE matchmatch criteria
cpe:2.3:a:curl:libcurl:7.10.5:*:*:*:*:*:*:*
7.10.6CPE matchmatch criteria
cpe:2.3:a:curl:libcurl:7.10.6:*:*:*:*:*:*:*
7.10.7CPE matchmatch criteria
cpe:2.3:a:curl:libcurl:7.10.7:*:*:*:*:*:*:*
7.10.8CPE matchmatch criteria
cpe:2.3:a:curl:libcurl:7.10.8:*:*:*:*:*:*:*
7.11.0CPE matchmatch criteria
cpe:2.3:a:curl:libcurl:7.11.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.8MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
4.41%
Probability of exploitation in next 30 days
EPSS Percentile
90.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0441 is in the 88th percentile among its peer group of 19,955 CVEs.

Social Chatter

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 (5)

jitsipatch availablevia llm_extracted
Fixed in: 7.19.7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 3Fixed in: curl-0:7.10.6-11.rhel3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: curl-0:7.12.1-11.1.el4_8.3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: curl-0:7.15.5-9.el5
View patch
sierra_wirelesspatch availablevia llm_extracted
Fixed in: 7.19.7
View patch

Vendor Advisories (3)

redhatCVE-2010-0734Moderate

curl: zlib-compression causes curl to pass more than CURL_MAX_WRITE_SIZE bytes to write callback

Feb 9, 2010
sierra_wirelessllm-sierra_wireless-04189787a834c7d8HIGH

data callback excessive length

Feb 9, 2010
jitsillm-jitsi-705fc524b6e608f3HIGH

data callback excessive length

Feb 9, 2010

References

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