Security Resilience

CVE-2023-28368

Tp-Link T2600G-28Sq Firmware 20190530 … 20200304

Published
11 April 2023
Modified
10 February 2025
Patch / advisory
CVSS Score v3.1 5.7
Click a component to see what it means
Raw vectorCVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
EPSS Score 0.0027 17th percentile
Risk Priority 44 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2023-28368 is a medium-severity Use of Weak Credentials (CWE-1391) vulnerability in Tp-Link T2600G-28Sq Firmware. Its CVSS base score is 5.7 (Medium).

Operationally, ranked at the 17th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

TP-Link L2 switch T2600G-28SQ firmware versions prior to 'T2600G-28SQ(UN)_V1_1.0.6 Build 20230227' uses vulnerable SSH host keys. A fake device may be prepared to spoof the affected device with the vulnerable host key.If the administrator may be tricked to login to…

more

the fake device, the credential information for the affected device may be obtained.

CWE(s)

Related Threats

CVEs Like This One

CVE-2025-15519Same vendor: Tp-Link
CVE-2026-0655Same vendor: Tp-Link
CVE-2024-1180Same vendor: Tp-Link
CVE-2026-22227Same vendor: Tp-Link
CVE-2023-47618Same vendor: Tp-Link
CVE-2024-48288Same vendor: Tp-Link
CVE-2023-31701Same vendor: Tp-Link
CVE-2026-15428Same vendor: Tp-Link
CVE-2026-30817Same vendor: Tp-Link
CVE-2025-9377Same vendor: Tp-Link

Affected Assets

tp-link
t2600g-28sq firmware
20190530, 20200304

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-1391

Ensuring sufficient strength of mechanism for authenticators prevents use of weak credentials.

addresses: CWE-1391

Enforces use of credentials that comply with standards rather than weak credentials for module access.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

blocks

A.5.17 mandates generation of non-guessable unique credentials, immediate change of defaults/temporary secrets, strong password enforcement, no reuse, blocking of compromised passwords, and secure transmission/storage; this stops exploitation of weak/guessable/default credentials for most but not all cases in CWE-1391 (e.g. leaves some non-password credential forms or post-compromise reuse outside its explicit scope).

degrades

Restricts privileged accounts but does not explicitly address default or hard-coded credentials for those accounts.

blocks

Requires security activities throughout the SDLC that can catch weak credentials, but does not mandate their elimination.

prevents

Secure-coding rules can prohibit hard-coded passwords, yet coverage depends on specific coding standards adopted.

finds

Security testing can discover weak credentials, but does not guarantee they are prevented by design.

blocks

A.8.5 mandates strong, multi-factor, non-guessable authentication techniques (with brute-force protection, no cleartext, etc.) that stop weak credentials from being successfully exploited; the bounded remainder is hard-coded/default credentials inside non-interactive product components where no human or session authentication occurs at all.

Hardening callouts derived

DISA STIG baselines are authored against specific weaknesses. Where this CVE cites a broad weakness class, the mapping is not asserted at that abstraction (owner ruling, 2026-09-25: grade only at Base and below), so no rule is shown here rather than a rule shown against the wrong grain.

  • No fine-grained STIG row for CWE-1391, a class-level weakness. Rules are authored against its narrower children: CWE-521.

References