Vulnerability Details : CVE-2021-34798

Malformed requests may cause the server to dereference a NULL pointer. This issue affects Apache HTTP Server 2.4.48 and earlier.
Published 2021-09-16 15:15:07
Updated 2022-10-28 13:34:54
Source Apache Software Foundation
View at NVD,   CVE.org

Threat overview for CVE-2021-34798

Top countries where our scanners detected CVE-2021-34798
Top open port discovered on systems with this issue 80
IPs affected by CVE-2021-34798 8,087,458
Threat actors abusing to this issue? Yes
Find out if you* are affected by CVE-2021-34798!
*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-2021-34798

Probability of exploitation activity in the next 30 days: 0.46%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 73 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2021-34798

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source
5.0
 MEDIUM AV:N/AC:L/Au:N/C:N/I:N/A:P
10.0
2.9
 NIST
7.5
 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.9
3.6
 NIST

CWE ids for CVE-2021-34798

  • A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.
    Assigned by:
    • nvd@nist.gov (Primary)
    • security@apache.org (Secondary)

References for CVE-2021-34798

Products affected by CVE-2021-34798

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