CVE-2007-1383

9.8 CRITICAL 15% exploit odds No fix listed Code execution Web app

What it is

Integer overflow in the 16 bit variable reference counter in PHP 4 allows context-dependent attackers to execute arbitrary code by overflowing this counter, which causes the same variable to be destroyed twice, a related issue to CVE-2007-1286.

At a glance

Exploitability: Can be exploited over the network without logging in. High risk of data exposure, data tampering, service disruption.
Exploit odds: 15.4% chance of exploitation in the next 30 days (EPSS). Higher than most.
Fix: No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

2007-03-09 00:00 UTC ReservedThe CVE id was reserved by its CNA
2007-03-10 00:19 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-16 22:37 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 15.4% in the next 30 days (EPSS).
Severity: 9.8 CRITICAL (CVSS).
Fix: none linked yet, which raises it.

Details

Published: 2007-03-10 00:19 UTC
Last modified: 2026-06-16 22:37 UTC
Exploit probability: 15.4% · EPSS, next 30 days
Weakness: CWE-189
Record status: Modified

Affected

PHP 4.0

Attack profile CVSS 3.1 · 9.8

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: High

Raw vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Is it in your code?

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References

NVD record · CVE.org record