MEDIUM

CVE-2022-44793

CVSS v3

6.5

MEDIUM

EPSS Score

53.5 %

exploit probability, as of 2026-10-15

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

net-snmpAlmaLinux:9all versions · fixed in 1:5.9.1-9.el9and 6 other packages
net-snmpAlmaLinux:8all versions · fixed in 1:5.8-27.el8and 5 other packages

Vendor advisories

CVE-2022-44793 Red Hat Product Security183 products fixed · 17 known affected
net-snmp: NULL Pointer Exception when handling pv6IpForwarding
net-snmp as a component of Red Hat Enterprise Linux 6 · net-snmp-devel as a component of Red Hat Enterprise Linux 6 · net-snmp-libs as a component of Red Hat Enterprise Linux 6
ICSA-24-165-10 CISA6 known affected
Siemens SIMATIC and SIPLUS
SIMATIC CP 1542SP-1 (6GK7542-6UX00-0XE0) · SIMATIC CP 1542SP-1 IRC (6GK7542-6VX00-0XE0) · SIMATIC CP 1543SP-1 (6GK7543-6WX00-0XE0)
SSA-625862 Siemens ProductCERT6 known affected
SSA-625862: Multiple Vulnerabilities in Third-Party Components in SIMATIC CP 1542SP-1 and CP 1543SP-1 before V2.3
SIMATIC CP 1542SP-1 (6GK7542-6UX00-0XE0) · SIMATIC CP 1542SP-1 IRC (6GK7542-6VX00-0XE0) · SIMATIC CP 1543SP-1 (6GK7543-6WX00-0XE0)
ICSA-23-320-13 CISA1 known affected
Siemens SIMATIC MV500
SIMATIC MV500 family
SSA-099606 Siemens ProductCERT1 known affected
SSA-099606: Multiple Vulnerabilities in SIMATIC MV500 before V3.3.5
SIMATIC MV500 family
RHSA-2023:2969 Red Hat Product Security88 products fixed
Red Hat Security Advisory: net-snmp security and bug fix update

1 more advisory

Full record on NVD

Description

handle_ipv6IpForwarding in agent/mibgroup/ip-mib/ip_scalars.c in Net-SNMP 5.4.3 through 5.9.3 has a NULL Pointer Exception bug that can be used by a remote attacker to cause the instance to crash via a crafted UDP packet, resulting in Denial of Service.

Technical details

Published: 2022-11-07

Frequently asked questions

What is CVE-2022-44793?

Is CVE-2022-44793 actively exploited?

Active exploitation of CVE-2022-44793 has not been confirmed. Its EPSS score was 53.5% on 2026-10-15, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-44793?

CVE-2022-44793 has a CVSS v3 base score of 6.5 (MEDIUM severity).

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