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CVE-2010-2531

19
FAUCET Score

CVE-2010-2531 describes an information disclosure vulnerability in PHP versions 5.2 before 5.2.14 and 5.3 before 5.3.3, affecting Debian Linux and PHP installations. The vulnerability allows remote attackers to obtain sensitive information by triggering fatal errors that cause the var_export function to flush output buffers even when display_errors is disabled. Rated with a CVSS score of 4.3 (Medium), this vulnerability has a network attack vector, medium attack complexity, and a potential impact of partial confidentiality. There is no evidence of active exploitation, and no public exploit code (Metasploit, Nuclei, ExploitDB) or significant community discussion or media coverage has been identified.

Impacted Technologies

VendorProductVersion(s)CPE
>= 5.2.0, < 5.2.14CPE matchmatch criteria
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
>= 5.3.0, < 5.3.3CPE matchmatch criteria
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
5.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:5.0:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:6.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
5.00%
Probability of exploitation in next 30 days
EPSS Percentile
91.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0500 is in the 89th percentile among its peer group of 19,958 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 (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: php-0:4.3.9-3.31
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: php-0:5.1.6-27.el5_5.3
View patch

Vendor Advisories (1)

redhatCVE-2010-2531Low

php: information leak vulnerability in var_export()

Jul 9, 2010

References

lists.apple.com / archives/security-announce/2010//Aug/msg00003.html
Mailing ListThird Party Advisory
lists.apple.com / archives/security-announce/2010//Nov/msg00000.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2010-09/msg00006.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2010-10/msg00000.html
Mailing ListThird Party Advisory
marc.info
Mailing ListThird Party Advisory
marc.info
Mailing ListThird Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
secunia.com / advisories/42410
Broken Link
support.apple.com / kb/HT4312
Third Party Advisory
support.apple.com / kb/HT4435
Third Party Advisory
svn.php.net / viewvc/php/php-src/trunk/ext/standard/tests/general_functions/var_export_error2.phpt
Vendor Advisory
debian.org / security/2011/dsa-2266
Third Party Advisory
openwall.com / lists/oss-security/2010/07/13/1
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2010/07/16/3
Mailing ListThird Party Advisory
php.net / archive/2010.php
Vendor Advisory
php.net / archive/2010.php
Vendor Advisory
redhat.com / support/errata/RHSA-2010-0919.html
Third Party Advisory
vupen.com / english/advisories/2010/3081
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