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CVE-2007-0988

14
FAUCET Score

CVE-2007-0988 describes a denial-of-service vulnerability in PHP 4 and 5 on 64-bit platforms, specifically within the zend_hash_init function. An attacker can trigger an infinite loop by unserializing crafted integer expressions, such as "a:2147483649:{", due to incorrect argument handling after a negative value check. This vulnerability has a CVSS score of 4.3 (Medium), indicating a network-based attack with medium complexity and a partial availability impact. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.0.0, < 4.4.5CPE matchmatch criteria
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
>= 5.0.0, < 5.2.1CPE matchmatch criteria
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
4.0CPE matchmatch criteria
cpe:2.3:a:php:php:4.0:*:*:*:*:*:*:*
4.0CPE matchmatch criteria
cpe:2.3:a:php:php:4.0:beta_4_patch1:*:*:*:*:*:*
4.0CPE matchmatch criteria
cpe:2.3:a:php:php:4.0:beta1:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

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

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

Exploit Intelligence

EPSS Score
2.31%
Probability of exploitation in next 30 days
EPSS Percentile
81.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0231 is in the 70th percentile among its peer group of 19,956 CVEs.

Social Chatter

No social media mentions found for this CVE.

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 (6)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 2.1Fixed in: php-0:4.1.2-2.14
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 3Fixed in: php-0:4.3.2-39.ent
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: php-0:4.3.9-3.22.3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: php-0:5.1.6-7.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Web Application Stack for RHEL 4Fixed in: php-0:5.1.6-3.el4s1.5
View patch
redhatpatch availablevia redhat_api
Product: Stronghold 4.0 for RHEL 2.1ASFixed in: stronghold-php-0:4.1.2-12
View patch

Vendor Advisories (1)

redhatCVE-2007-0988Moderate

security flaw

Feb 14, 2007

References

patches.sgi.com / support/free/security/advisories/20070201-01-P.asc
Broken Link
bugzilla.redhat.com / bugzilla/show_bug.cgi
Issue TrackingThird Party Advisory
h20000.www2.hp.com / bizsupport/TechSupport/Document.jsp
Broken Link
h20000.www2.hp.com / bizsupport/TechSupport/Document.jsp
Broken Link
osvdb.org / 32762
Broken Link
rhn.redhat.com / errata/RHSA-2007-0089.html
Third Party Advisory
secunia.com / advisories/24195
Third Party Advisory
secunia.com / advisories/24217
Third Party Advisory
secunia.com / advisories/24236
Third Party Advisory
secunia.com / advisories/24248
Third Party Advisory
secunia.com / advisories/24284
Third Party Advisory
secunia.com / advisories/24295
Third Party Advisory
secunia.com / advisories/24322
Third Party Advisory
secunia.com / advisories/24419
Third Party Advisory
secunia.com / advisories/24421
Third Party Advisory
secunia.com / advisories/24432
Third Party Advisory
secunia.com / advisories/24606
Third Party Advisory
secunia.com / advisories/24642
Third Party Advisory
secunia.com / advisories/25056
Third Party Advisory
secunia.com / advisories/25423
Third Party Advisory
secunia.com / advisories/25850
Third Party Advisory
security.gentoo.org / glsa/glsa-200703-21.xml
Third Party Advisory
securityreason.com / securityalert/2315
Third Party Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/32709
Third Party AdvisoryVDB Entry
issues.rpath.com / browse/RPL-1088
Broken Link
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11092
Third Party Advisory
support.avaya.com / elmodocs2/security/ASA-2007-101.htm
Third Party Advisory
support.avaya.com / elmodocs2/security/ASA-2007-136.htm
Third Party Advisory
mandriva.com / security/advisories
Third Party Advisory
novell.com / linux/security/advisories/2007_32_php.html
Broken Link
openpkg.com / security/advisories/OpenPKG-SA-2007.010.html
Third Party Advisory
php.net / releases/5_2_1.php
PatchThird Party Advisory
php-security.org / MOPB/MOPB-05-2007.html
Third Party Advisory
redhat.com / support/errata/RHSA-2007-0076.html
Third Party Advisory
redhat.com / support/errata/RHSA-2007-0081.html
Third Party Advisory
redhat.com / support/errata/RHSA-2007-0082.html
Third Party Advisory
redhat.com / support/errata/RHSA-2007-0088.html
Third Party Advisory
securityfocus.com / archive/1/461462/100/0/threaded
Third Party AdvisoryVDB Entry
securitytracker.com / id
Third Party AdvisoryVDB Entry
trustix.org / errata/2007/0009
Broken Link
ubuntu.com / usn/usn-424-1
Third Party Advisory
ubuntu.com / usn/usn-424-2
Third Party Advisory
us.debian.org / security/2007/dsa-1264
Broken Link
vupen.com / english/advisories/2007/1991
Third Party Advisory
vupen.com / english/advisories/2007/2374
Third Party Advisory