CVE-2025-6151

HIGHPre-NVD 8.28.8
EchelonGraph scoreMEDIUM confidence

“▲” beside the score: it is higher than the CVSS score beside it.

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2025-06-17. A secondary CVSS source baseline 8.2; sources differ by 0.6.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 3 sources updated this weekElevated

Also known asEUVD-2025-18451 (ENISA EUVD) · GHSA-pc68-4m2q-7jqf (GitHub Security Advisories)Source: ENISA EUVD

8.8EG
EchelonGraph verdictPlan mitigationNo fix is confirmed yet: check with the vendor for a fixed release; until one is applied, restrict network exposure of the affected system on your normal schedule at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 5.0%CVSS: 8.2Exploit: No code on recordExposed services: Not assessed

No fix is confirmed yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for the fix.

The CVE record's CNA (TP-Link Systems Inc.) lists TP-Link Systems INC. TL-WR940N V4 versions up to and including 160617; TP-Link Systems INC. TL-WR841N V11 versions up to and including 160325 as affected. No release containing a fix is confirmed on record.

A vulnerability has been found in TP-Link TL-WR940N V4 and TL-WR841N V11. Affected by this issue is some unknown functionality of the file /userRpm/WanSlaacCfgRpm.htm, which may lead to buffer overflow. The attack may be launched remotely. This vulnerability only affects products that are no longer supported by the maintainer.

CVSS v3
8.2
EG Score
8.8HIGHmedium confidence
EG Risk
56
EG Risk 56/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity88% × 45%
Impact severity (EG Severity): CVSS 8.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: No fix is confirmed yet. Check with the vendor for a fixed release; until one is applied, restrict network exposure of the affected system on your normal schedule at low or medium mission impact and sooner than that at high.
EPSS PROB
5.0%
EPSS %ILE
92nd
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (8.8): severity, escalated by confirmed exploitation. This CVE's 8.8 is its impact severity (EG Severity), not escalated.

EG Severity
8.8 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
5.0% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-31). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track* at medium mission impactTrack at low, Track* at medium and Attend at high mission impact.CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says. In the directive's words, “Fix on system upgrade” means that, “unless conditions change”, the vulnerability “should be remediated the next time the vulnerable asset receives a scheduled major upgrade or rebuild”: its timelines are “dynamic as facts change”, and a KEV listing shortens them.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Track* at medium and Attend at high mission impact.

No fix is confirmed yet. Check with the vendor for a fixed release; until one is applied, restrict network exposure of the affected system on your normal schedule at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

No released fix is confirmed on this page, but CISA's timeline does not wait for a fix's release: it starts when an agency identifies the flaw on an asset and updates the CDM Agency and Federal Dashboard, and the directive counts patching, decommissioning the system or another action as remediation. Until a fixed release is applied, mitigate as this page's verdict says. In the directive's words, “Fix on system upgrade” means that, “unless conditions change”, the vulnerability “should be remediated the next time the vulnerable asset receives a scheduled major upgrade or rebuild”: its timelines are “dynamic as facts change”, and a KEV listing shortens them.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

June 17, 2025

Last Modified

June 17, 2026

Advisory Details (2)

Auto-updated Sep 7, 2026
No fix on record yet.
Web page

TP-Link TL-WR940N v4 firmware has a buffer overflow vulnerability at function sub_44E6E0 · Issue #7 · WhereisDoujo/CVE · GitHub

https://github.com/WhereisDoujo/CVE/issues/7
Web page

Statement on the buffer overflow on TL-WR940N, TL-WR841N (CVE-2025-6151) | TP-Link

https://www.tp-link.com/us/support/faq/4536/

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 8× in last 7d / 41× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 98 of 188 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 2 repeat rows among the latest 100 are merged into the row they repeat. The 90 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-02 16:43 UTCEPSS rescoreEPSS 5.0% · 92nd percentile
  2. 2026-11-01 08:39 UTCEG score recompute
  3. 2026-11-01 08:39 UTCGHSA enrichmentGHSA-pc68-4m2q-7jqf · GitHub severity HIGH · GitHub CVSS 8.8
  4. 2026-10-31 16:31 UTCEPSS rescoreEPSS 5.0% · 92nd percentile
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  11. 2026-10-25 16:14 UTCEG score recompute
  12. 2026-10-25 05:42 UTCEG score recompute
  13. 2026-10-25 05:42 UTCGHSA enrichmentGHSA-pc68-4m2q-7jqf · GitHub severity HIGH · GitHub CVSS 8.8
  14. 2026-10-24 16:31 UTCEPSS rescoreEPSS 5.0% · 92nd percentile
  15. 2026-10-23 16:31 UTCEPSS rescoreEPSS 5.0% · 92nd percentile
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  21. 2026-10-18 05:22 UTCEG score recompute
  22. 2026-10-18 02:44 UTCEG score recompute
  23. 2026-10-18 02:44 UTCGHSA enrichmentGHSA-pc68-4m2q-7jqf · GitHub severity HIGH · GitHub CVSS 8.8
  24. 2026-10-17 16:33 UTCEPSS rescoreEPSS 5.0% · 92nd percentile
  25. 2026-10-16 16:39 UTCEPSS rescoreEPSS 5.0% · 92nd percentile
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  1. 2026-10-15 16:31 UTCEPSS rescoreEPSS 5.0% · 92nd percentile
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  3. 2026-10-13 16:33 UTCEPSS rescoreEPSS 5.0% · 91st percentile
  4. 2026-10-12 16:52 UTCEG score recompute
  5. 2026-10-12 16:33 UTCEPSS rescoreEPSS 5.0% · 91st percentile
  6. 2026-10-11 20:26 UTCEG score recompute
  7. 2026-10-11 18:38 UTCEG score recompute
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  9. 2026-10-11 13:47 UTCEPSS rescoreEPSS 5.0% · 91st percentile
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Frequently asked(5)

What is CVE-2025-6151?
CVE-2025-6151 is a high-severity vulnerability; its CVE record was published on June 17, 2025. A vulnerability has been found in TP-Link TL-WR940N V4 and TL-WR841N V11. Affected by this issue is some unknown functionality of the file /userRpm/WanSlaacCfgRpm.htm, which may lead to buffer overflow. The attack may be launched remotely. This vulnerability only affects products that are no longer…
When was the CVE record for CVE-2025-6151 published?
The CVE record for CVE-2025-6151 was published on June 17, 2025. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of June 17, 2026; the record at its source may have been updated since.
Is CVE-2025-6151 actively exploited?
CVE-2025-6151 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 5.0% probability of exploitation in the next 30 days (92nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2025-6151?
CVE-2025-6151 has a CVSS base score of 8.2 (a secondary CVSS source that NVD displays; NVD's own analysis pending). EchelonGraph synthesises a secondary CVSS source + FIRST EPSS + GHSA into a combined EG score of 8.8 (HIGH).
How do I remediate CVE-2025-6151?
No fix for CVE-2025-6151 is confirmed yet. Until one is published, restrict network exposure of the affected system — for example, keep it off the internet or limit it to trusted networks — and watch for a fix. The CVE record's CNA (TP-Link Systems Inc.) lists TP-Link Systems INC. TL-WR940N V4 versions up to and including 160617; TP-Link Systems INC. TL-WR841N V11 versions up to and including 160325 as affected. No release containing a fix is confirmed on record.

Dependency Blast Radius

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