CVE-2015-2783

CVE-2015-2783 is a medium-severity vulnerability in Php with a CVSS 2.0 base score of 5.8. Its EPSS exploit-prediction score of 11% places it in the 95th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-119.

Key facts

• Severity: Medium (CVSS 2.0 base score 5.8)
• EPSS exploit prediction: 11% (95th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-119
• Affected product: Php
• Published: 2015-06-09
• Last modified: 2026-06-17

Description

ext/phar/phar.c in PHP before 5.4.40, 5.5.x before 5.5.24, and 5.6.x before 5.6.8 allows remote attackers to obtain sensitive information from process memory or cause a denial of service (buffer over-read and application crash) via a crafted length value in conjunction with crafted serialized data in a phar archive, related to the phar_parse_metadata and phar_parse_pharfile functions.

Frequently asked questions

What is CVE-2015-2783?

ext/phar/phar.c in PHP before 5.4.40, 5.5.x before 5.5.24, and 5.6.x before 5.6.8 allows remote attackers to obtain sensitive information from process memory or cause a denial of service (buffer over-read and application crash) via a crafted length value in conjunction with crafted serialized data in a phar archive, related to the phar_parse_metadata and phar_parse_pharfile functions.

How severe is CVE-2015-2783?

CVE-2015-2783 has a CVSS 2.0 base score of 5.8, rated medium severity.

Is CVE-2015-2783 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 11% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-2783?

CVE-2015-2783 primarily affects Php. In total, 58 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-2783?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2015-2783 published?

CVE-2015-2783 was published on 2015-06-09 and last updated on 2026-06-17.

References

• http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html
• http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.html
• http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00004.html
• http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00005.html
• http://marc.info/?l=bugtraq&m=143403519711434&w=2
• http://php.net/ChangeLog-5.php
• http://rhn.redhat.com/errata/RHSA-2015-1066.html
• http://rhn.redhat.com/errata/RHSA-2015-1135.html
• http://rhn.redhat.com/errata/RHSA-2015-1186.html
• http://rhn.redhat.com/errata/RHSA-2015-1187.html
• http://rhn.redhat.com/errata/RHSA-2015-1218.html
• http://www.debian.org/security/2015/dsa-3280
• http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html
• http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
• http://www.securityfocus.com/bid/74239
• http://www.securitytracker.com/id/1032146
• http://www.ubuntu.com/usn/USN-2572-1
• https://bugs.php.net/bug.php?id=69324
• https://security.gentoo.org/glsa/201606-10
• https://support.apple.com/HT205267
• https://support.apple.com/kb/HT205031

Affected products (58)

• cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.5.0:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.5.0:alpha1:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.5.0:alpha2:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.5.0:alpha3:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.5.0:alpha4:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.5.0:alpha5:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.5.0:alpha6:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.5.0:beta1:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.5.0:beta2:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.5.0:beta3:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.5.0:beta4:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.5.0:rc1:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.5.0:rc2:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.5.1:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.5.2:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.5.3:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.5.4:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.5.5:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.5.6:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.5.7:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.5.8:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.5.9:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.5.10:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.5.11:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.5.12:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.5.13:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.5.14:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.5.18:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.5.19:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.5.20:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.5.21:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.5.22:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.5.23:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.6.0:alpha1:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.6.0:alpha2:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.6.0:alpha3:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.6.0:alpha4:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.6.0:alpha5:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.6.0:beta1:*:*:*:*:*:*

More vulnerabilities in Php

• CVE-2015-0235 — Critical (CVSS 10.0): Heap-based buffer overflow in the __nss_hostname_digits_dots function in glibc 2.2, and other 2.x versions before 2.18,…
• CVE-2012-2688 — Critical (CVSS 10.0): Unspecified vulnerability in the _php_stream_scandir function in the stream implementation in PHP before 5.3.15 and…
• CVE-2012-2376 — Critical (CVSS 10.0): Buffer overflow in the com_print_typeinfo function in PHP 5.4.3 and earlier on Windows allows remote attackers to…
• CVE-2011-3268 — Critical (CVSS 10.0): Buffer overflow in the crypt function in PHP before 5.3.7 allows context-dependent attackers to have an unspecified…
• CVE-2009-4143 — Critical (CVSS 10.0): PHP before 5.2.12 does not properly handle session data, which has unspecified impact and attack vectors related to (1)…
• CVE-2008-5557 — Critical (CVSS 10.0): Heap-based buffer overflow in ext/mbstring/libmbfl/filters/mbfilter_htmlent.c in the mbstring extension in PHP 4.3.0…

All CVEs affecting Php →

Other CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities

• CVE-2026-2778 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability was fixed in…
• CVE-2026-2776 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This vulnerability…
• CVE-2025-1866 — Critical (CVSS 10.0): Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in warmcat libwebsockets allows…
• CVE-2022-27625 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
• CVE-2022-27624 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
• CVE-2020-11896 — Critical (CVSS 10.0): The Treck TCP/IP stack before 6.0.1.66 allows Remote Code Execution, related to IPv4 tunneling.

Browse all CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities →

Threat intelligence

Threat-intel indicators referencing this CVE:

• 45.84.120.3 (ipv4-addr)
• 221.161.235.168 (ipv4-addr)
• 200.196.50.91 (ipv4-addr)
• 187.141.71.166 (ipv4-addr)
• 187.110.238.50 (ipv4-addr)
• 113.164.66.10 (ipv4-addr)
• 103.38.219.22 (ipv4-addr)
• 103.20.122.54 (ipv4-addr)