CVE-2015-7803

6.8 MEDIUM 10% exploit odds Fix listed Denial of service Web app

What it is

The phar_get_entry_data function in ext/phar/util.c in PHP before 5.5.30 and 5.6.x before 5.6.14 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a .phar file with a crafted TAR archive entry in which the Link indicator references a file that does not exist.

At a glance

Exploitability: Can be exploited over the network without logging in. Limited direct impact.
Exploit odds: 10.3% chance of exploitation in the next 30 days (EPSS). Higher than most.
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2015-12-11 12:00 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 00:33 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 10.3% in the next 30 days (EPSS).
Severity: 6.8 MEDIUM (CVSS).
Fix: a patch or advisory is linked.

Details

Published: 2015-12-11 12:00 UTC
Last modified: 2026-06-17 00:33 UTC
Exploit probability: 10.3% · EPSS, next 30 days
Record status: Modified

Affected

PHP ≤ 5.5.29
PHP 5.6.1
PHP 5.6.2
PHP 5.6.3
PHP 5.6.4
PHP 5.6.5
PHP 5.6.6
PHP 5.6.7

Attack profile CVSS 2.0 · 6.8

Attack vector: Network
Complexity: Medium
Authentication: None
Confidentiality: Partial
Integrity: Partial
Availability: Partial

Raw vector

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

Is it in your code?

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Read https://cve-list.com/agent/cve/CVE-2015-7803.md and follow it. Check whether this project is affected by CVE-2015-7803. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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Fix and advisories

References

NVD record · CVE.org record