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CVE-2011-1092

44
FAUCET Score

CVE-2011-1092 describes an integer overflow vulnerability in the shmop_read function within PHP versions prior to 5.3.6. This flaw allows remote attackers to trigger a denial of service (application crash) and potentially access sensitive memory by providing a large third argument to the affected function. With a CVSS score of 7.5, this vulnerability is considered highly severe due to its network-based attack vector, low attack complexity, and potential for partial confidentiality, integrity, and availability impacts. While not currently on the KEV catalog, public exploit code exists, specifically an ExploitDB entry, though there is no evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
<= 5.3.5CPE matchmatch criteria
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
1.0CPE matchmatch criteria
cpe:2.3:a:php:php:1.0:*:*:*:*:*:*:*
2.0CPE matchmatch criteria
cpe:2.3:a:php:php:2.0:*:*:*:*:*:*:*
2.0b10CPE matchmatch criteria
cpe:2.3:a:php:php:2.0b10:*:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:a:php:php:3.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
17.88%
Probability of exploitation in next 30 days
EPSS Percentile
96.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
ExploitDB: EDB-16966 · Mar 12, 2011
This CVE's current EPSS score of 0.1788 is in the 95th percentile among its peer group of 51,455 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2011-1092

php: integer overflow in shmop_read()

Mar 8, 2011

References

bugs.php.net / bug.php
lists.apple.com / archives/Security-announce/2011//Oct/msg00003.html
marc.info
bugzilla.redhat.com / show_bug.cgi
securityreason.com / securityalert/8130
exchange.xforce.ibmcloud.com / vulnerabilities/65988
support.apple.com / kb/HT5002
svn.php.net / viewvc/php/php-src/branches/PHP_5_3/ext/shmop/shmop.c
Patch
exploit-db.com / exploits/16966
Exploit
mandriva.com / security/advisories
mandriva.com / security/advisories
openwall.com / lists/oss-security/2011/03/08/11
ExploitPatch
openwall.com / lists/oss-security/2011/03/08/9
ExploitPatch
php.net / archive/2011.php
php.net / ChangeLog-5.php
php.net / releases/5_3_6.php
securityfocus.com / bid/46786
Exploit
vupen.com / english/advisories/2011/0744