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CVE-2012-2386

59
FAUCET Score

CVE-2012-2386 is an integer overflow vulnerability in the phar extension of PHP versions before 5.3.14 and 5.4.4. This flaw, specifically within the phar_parse_tarfile function, allows remote attackers to trigger a heap-based buffer overflow via a crafted tar file. With a CVSS score of 7.5, this vulnerability is considered highly severe, enabling denial of service (application crash) and potentially arbitrary code execution without authentication. While not listed in CISA KEV, exploit code for a heap overflow (EDB-17201) exists, though there is no evidence of active exploitation, Metasploit modules, or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
<= 5.3.13CPE matchmatch criteria
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
>= 5.4.0, < 5.4.4CPE matchmatch criteria
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*

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
42.48%
Probability of exploitation in next 30 days
EPSS Percentile
98.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
ExploitDB: EDB-17201 · Apr 22, 2011
This CVE's current EPSS score of 0.4248 is in the 97th percentile among its peer group of 51,553 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

Patch Available

Vendor Patches (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: php53-0:5.3.3-13.el5_8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: php-0:5.3.3-14.el6_3
View patch

Vendor Advisories (1)

redhatCVE-2012-2386Moderate

php: Integer overflow leading to heap-buffer overflow in the Phar extension

May 21, 2012

References

0x1byte.blogspot.com / 2011/04/php-phar-extension-heap-overflow.html
ExploitThird Party Advisory
git.php.net
lists.apple.com / archives/security-announce/2012/Sep/msg00004.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2012-07/msg00003.html
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2012/05/22/10
Mailing ListThird Party Advisory
bugs.php.net / bug.php
Vendor Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
support.apple.com / kb/HT5501
Third Party Advisory
php.net / ChangeLog-5.php
Vendor Advisory