7.5

CVE-2023-0662: DoS vulnerability when parsing multipart request body

Modified
AliasesUBUNTU-CVE-2023-0662DEBIAN-CVE-2023-0662ALPINE-CVE-2023-0662
Published 16-02-2023Last modified 18-03-2025

Vulnerability summary

CVE-2023-0662 is a high (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in php group php. EPSS estimates a 1.47% chance of exploitation in the next 30 days, higher than 73.7% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 7.5 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 1% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
1.47%
0%100%
Low · +0.06 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 13 · Related 7
DLA-3345-1DSA-5363-1MGASA-2023-0065RHSA-2023:5926RHSA-2023:5927RHSA-2024:0387

Timeline

  1. 16-02-2023
    PublishedVulnerability first disclosed.
  2. 18-03-2025
    Last modifiedVulnerability information updated.

Description

In PHP 8.0.X before 8.0.28, 8.1.X before 8.1.16 and 8.2.X before 8.2.3, excessive number of parts in HTTP form upload can cause high resource consumption and excessive number of log entries. This can cause denial of service on the affected server by exhausting CPU resources or disk space.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

1.47%

Chance of exploitation in the next 30 days

Percentile

74%

Versus all other CVEs

30-day change

Increase +0.06 pp

From 1.41% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu5 products
  • php5All versions (No fix recorded)
  • php7.0< 7.0.33-0ubuntu0.16.04.16+esm5
  • php7.2< 7.2.24-0ubuntu0.18.04.17
  • php7.4< 7.4.3-4ubuntu2.18
  • php8.1< 8.1.2-1ubuntu2.11
Alpine4 products
  • php7< 7.4.33-r1
  • php8< 8.0.28-r0
  • php81< 8.1.17-r0 | < 8.1.16-r0
  • php82< 8.2.3-r0
Debian1 product
  • php8.2< 8.2.4-1
Php1 product
  • php≥ 8.0.0, < 8.0.28 | ≥ 8.1.0, < 8.1.16 | ≥ 8.2.0, < 8.2.3
Php group1 product
  • php≥ 8.0.x, < 8.0.28 | ≥ 8.1.x, < 8.1.16 | ≥ 8.2.x, < 8.2.3

5 vendors · 12 products

References

9 links