ap_escape_quotes() may write beyond the end of a buffer when given malicious input. No included modules pass untrusted data to these functions, but third-party / external modules may. This issue affects Apache HTTP Server 2.4.48 and earlier.
Published 2021-09-16 15:15:08
Updated 2022-10-05 12:28:21
View at NVD,   CVE.org
Vulnerability category: Memory Corruption

Threat overview for CVE-2021-39275

Top countries where our scanners detected CVE-2021-39275
Top open port discovered on systems with this issue 80
IPs affected by CVE-2021-39275 7,398,709
Threat actors abusing to this issue? Yes
Find out if you* are affected by CVE-2021-39275!
*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2021-39275

Probability of exploitation activity in the next 30 days: 0.55%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 75 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2021-39275

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source
7.5
HIGH AV:N/AC:L/Au:N/C:P/I:P/A:P
10.0
6.4
NIST
9.8
CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.9
5.9
NIST

CWE ids for CVE-2021-39275

  • The product writes data past the end, or before the beginning, of the intended buffer.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-39275

Products affected by CVE-2021-39275

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