---
title: "CVE-2022-23943: mod_sed: Read/write beyond bounds | CubePath"
description: "Out-of-bounds Write vulnerability in mod_sed of Apache HTTP Server allows an attacker to overwrite heap memory with possibly attacker provided data. This…"
language: en
source: https://cubepath.com/security/cve/CVE-2022-23943
---

# CVE-2022-23943: mod_sed: Read/write beyond bounds | CubePath

## Description

Out-of-bounds Write vulnerability in mod\_sed of Apache HTTP Server allows an attacker to overwrite heap memory with possibly attacker provided data. This issue affects Apache HTTP Server 2.4 version 2.4.52 and prior versions.

Official description from the CVE record, published by apache. Copyright © 1999-2026 The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CVE license. [View the record on cve.org](https://www.cve.org/CVERecord?id=CVE-2022-23943)

## Key data

### EPSS

Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days.

Score

0.50401 (50.4% probability)

Percentile

98.9%

Scores of

Nov 10, 2026

Model

v2026.06.15

### Weakness (CWE)

CWE catalog version 5.0.

CWE names: Copyright © 2006-2026, The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CWE license.

- [CWE-787](https://cwe.mitre.org/data/definitions/787.html) Out-of-bounds Write
- [CWE-190](https://cwe.mitre.org/data/definitions/190.html) Integer Overflow or Wraparound

## Affected products

Products listed in the CVE record, as the CNA published them.

- Apache HTTP Server

  - affected: 2.4 up to 2.4.52

## References

Links listed in the CVE record. They lead to other sites, which CubePath does not control.

- [httpd.apache.org/security/vulnerabilities\_24.html](https://httpd.apache.org/security/vulnerabilities%5F24.html)
- [\[oss-security\] 20220314 CVE-2022-23943: Apache HTTP Server: mod\_sed: Read/write beyond bounds](http://www.openwall.com/lists/oss-security/2022/03/14/1)  (openwall.com) mailing-list
- [FEDORA-2022-b4103753e9](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RGWILBORT67SHMSLYSQZG2NMXGCMPUZO/)  (lists.fedoraproject.org) vendor-advisory
- [\[debian-lts-announce\] 20220322 \[SECURITY\] \[DLA 2960-1\] apache2 security update](https://lists.debian.org/debian-lts-announce/2022/03/msg00033.html)  (lists.debian.org) mailing-list
- [FEDORA-2022-21264ec6db](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z7H26WJ6TPKNWV3QKY4BHKUKQVUTZJTD/)  (lists.fedoraproject.org) vendor-advisory
- [FEDORA-2022-78e3211c55](https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X73C35MMMZGBVPQQCH7LQZUMYZNQA5FO/)  (lists.fedoraproject.org) vendor-advisory
- [oracle.com/security-alerts/cpuapr2022.html](https://www.oracle.com/security-alerts/cpuapr2022.html)
- [tenable.com/security/tns-2022-08](https://www.tenable.com/security/tns-2022-08)
- [security.netapp.com/advisory/ntap-20220321-0001](https://security.netapp.com/advisory/ntap-20220321-0001/)
- [tenable.com/security/tns-2022-09](https://www.tenable.com/security/tns-2022-09)
- [GLSA-202208-20](https://security.gentoo.org/glsa/202208-20)  (security.gentoo.org) vendor-advisory

## Timeline

1. ID reserved Jan 25, 2022
2. Record published Mar 14, 2022
3. Record last updated Aug 3, 2024

## Look up another CVE

## About CubePath

CubePath is a cloud provider with data centers in Europe and the United States. It offers VPS, bare metal servers and DDoS protection.

[Cloud VPS](https://cubepath.com/vps) [DDoS protection](https://cubepath.com/ddos-protection)

Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 20:01 UTC. [Sources and licenses](https://cubepath.com/security/cve/legal)