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CVE-2022-4603

23
FAUCET Score

CVE-2022-4603 describes a problematic vulnerability in the pppdump component of the ppp package, specifically affecting the dumpppp function due to improper array index validation. This vulnerability impacts products like Samba and ppp. Rated as Medium severity with a CVSS score of 6.5, the vulnerability has a network attack vector and low attack complexity, but requires user interaction (UI:R). A successful exploit could lead to high availability impact (A:H), though its existence is currently doubted. There is no evidence of active exploitation, nor is public exploit code available (Metasploit, Nuclei, ExploitDB: None). Community discussion and media coverage are absent, indicating very low attention to this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.5.0CPE matchmatch criteria
cpe:2.3:a:samba:ppp:*:*:*:*:*:linux:*:*
< 2.5.0CPE matchmatch criteria
cpe:2.3:a:samba:ppp:*:*:*:*:*:solaris:*:*

CVSS Data

CVSS version used by this source: 3.1

4.3MEDIUM

CVSS:3.1/AV:A/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L

Attack Vector
ADJACENT_NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
0.9
Impact Score
3.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.82%
Probability of exploitation in next 30 days
EPSS Percentile
53.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0082 is in the 62nd percentile among its peer group of 26,209 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (6)

github_advisorypatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: 19513-16823Fixed in: 2.4.7-36
microsoftpatch availablevia msrc
Product: cbl2 ppp 2.4.7-36 on CBL Mariner 2.0Fixed in: 2.4.7-36
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: ppp
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: ppp
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: ppp

Vendor Advisories (2)

redhatCVE-2022-4603Moderate

ppp: improper validation of array index of the component pppdump

Dec 19, 2022
microsoft2022-Dec/CVE-2022-4603Moderate

ppp pppdump pppdump.c dumpppp array index

Dec 13, 2022

References

lists.fedoraproject.org / archives/list/[email protected]/message/J43NP7ABHOCIWOFHWCH6ZCZOYKZH6723
github.com / ppp-project/ppp/commit/a75fb7b198eed50d769c80c36629f38346882cbf
PatchThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/J43NP7ABHOCIWOFHWCH6ZCZOYKZH6723
vuldb.com
Third Party Advisory