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CVE-2021-21702

MEDIUM
Published 2021-02-15T04:10:16.837039Z
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Expert Analysis

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CVSS Score

V3.1
5.3
/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.002
probability
of exploitation in the wild

There is a 0.2% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.377
Higher than 37.7% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED

Impact Metrics

Confidentiality
NONE
Integrity
NONE
Availability
LOW

Description

In PHP versions 7.3.x below 7.3.27, 7.4.x below 7.4.15 and 8.0.x below 8.0.2, when using SOAP extension to connect to a SOAP server, a malicious SOAP server could return malformed XML data as a response that would cause PHP to access a null pointer and thus cause a crash.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

PHP Group

PHP

Affected Versions:

7.3.x 7.4.x 8.0.X

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed HIGH

GHSA-5hg4-wc97-mw4m

Advisory Details

In PHP versions 7.3.x below 7.3.27, 7.4.x below 7.4.15 and 8.0.x below 8.0.2, when using SOAP extension to connect to a SOAP server, a malicious SOAP server could return malformed XML data as a response that would cause PHP to access a null pointer and thus cause a crash.

CVSS Scoring

CVSS Score

7.5

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2021-21702
WEB https://bugs.php.net/bug.php?id=80672
WEB https://lists.debian.org/debian-lts-announce/2021/07/msg00008.html
WEB https://security.gentoo.org/glsa/202105-23
WEB https://security.netapp.com/advisory/ntap-20210312-0005
WEB https://www.debian.org/security/2021/dsa-4856
WEB https://www.oracle.com/security-alerts/cpuoct2021.html
WEB https://www.tenable.com/security/tns-2021-14

Advisory provided by GitHub Security Advisory Database. Published: May 24, 2022, Modified: May 24, 2022

References

https://bugs.php.net/bug.php?id=80672
https://www.debian.org/security/2021/dsa-4856
https://security.gentoo.org/glsa/202105-23
https://lists.debian.org/debian-lts-announce/2021/07/msg00008.html
https://www.oracle.com/security-alerts/cpuoct2021.html
https://www.tenable.com/security/tns-2021-14
https://security.netapp.com/advisory/ntap-20210312-0005/
Published: 2021-02-15T04:10:16.837039Z
Last Modified: 2024-09-16T17:34:26.201Z
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