HOMEVULNERABILITIESCVE-2026-28372
HIGH

CVE-2026-28372

CWE-829Published: February 27, 2026· Updated: Mar 2, 2026

7.8
CVSS v3.1
EPSS:0.01%probability of exploitation in 30 daysPercentile:1.7th

Official Description

telnetd in GNU inetutils through 2.7 allows privilege escalation that can be exploited by abusing systemd service credentials support added to the login(1) implementation of util-linux in release 2.40. This is related to client control over the CREDENTIALS_DIRECTORY environment variable, and requires an unprivileged local user to create a login.noauth file.

NVD Source

Technical Analysis

CVE-2026-28372 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

gnu1 product
inetutils
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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Official Patches & Advisories

PATCHhttps://git.hadrons.org/cgit/debian/pkgs/inetutils.git/commit/?id=3953943d8296310485f98963883a798545ab9a6c
ADVISORYhttps://lists.gnu.org/archive/html/bug-inetutils/2026-02/msg00000.html
ADVISORYhttps://lists.gnu.org/archive/html/bug-inetutils/2026-02/msg00012.html
ADVISORYhttps://www.openwall.com/lists/oss-security/2026/02/24/1
ADVISORYhttp://www.openwall.com/lists/oss-security/2026/02/27/3

All References (5)

→
https://git.hadrons.org/cgit/debian/pkgs/inetutils.git/commit/?id=3953943d8296310485f98963883a798545ab9a6cPatch
→
https://lists.gnu.org/archive/html/bug-inetutils/2026-02/msg00000.htmlMailing List · Third Party Advisory · Exploit
→
https://lists.gnu.org/archive/html/bug-inetutils/2026-02/msg00012.htmlMailing List · Third Party Advisory
→
https://www.openwall.com/lists/oss-security/2026/02/24/1Mailing List · Third Party Advisory
→
http://www.openwall.com/lists/oss-security/2026/02/27/3Mailing List · Third Party Advisory

Quick Facts

CVE IDCVE-2026-28372
CVSS Score7.8 / 10
SeverityHIGH
WeaknessCWE-829
CISA KEVNo
EPSS (30d)0.01%
Affected1 vendor
PublishedFeb 27, 2026

Related CVEs (CWE-829)

CVE-2026-27941
9.9
CVE-2026-40154
9.6
CVE-2026-13751
9.6
CVE-2026-5241
9.6
CVE-2026-47174
9.5
CVE-2026-47172
9.5

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-28372 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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