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CVE-2025-51087

INDEX BUILT · 2026-09-20

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Tenda AC8V4 V16.03.34.06` was discovered to contain stack overflow at /goform/saveParentControlInfo

CVE-2025-510873 of 4 sources documented this
4

rank 4 = 2 + 0 + 0 + 2 + 0

rank@v1 · backlog

Someone is already using it

CISA KEV catalog · public proof-of-concept · FIRST EPSS

EPSS 0.08493  ·  without this subject the record ranks 2

What it costs you if it fires

NVD CVSS base score, then the CNA's own

no CVSS held by anyone  ·  without this subject the record ranks 4

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

no persisting rise in 365 days  ·  without this subject the record ranks 4

How much of the world it touches

NVD CPE configurations

1 product in the CPE ranges  ·  without this subject the record ranks 2

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 4

Hindsight · the state

0.08493EPSSNOT IN KEVas of 2026-09-20
Severitynot scored
Harmnot stated
Exploitationnone in held sources
Defenseno fix version held
Movementrisenreceipt
PLATEAU10Minimal movement since 2025-07-25, 404 days at 0.08, as of 2026-09-02. arc-rules@v1

Foresight · where to check next

Ivanti ConnectSonicWall SMA100DD-WRTCisco IOSFortinet FortiNDR51087

This record is one instance of CWE-121, stack-based buffer overflow. The index holds 3820 prior instances of this class, 19 KEV-listed. The nearest of its KEV-listed records are drawn beside this. taxonomy@v1

Full pattern panel

Prior records in this weakness class. Each is its own record, dated and receipted.
Color is a claim, not decoration:the hostile worldthe defenseno signal

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Harm, if it fires from the vector and the weakness

Written for the ticket you're about to file.

ReachNo CVSS vector in held sources, so no reach or impact can be stated.
Weakness classCWE-121 Stack-based Buffer Overflowreceipt
Published consequencesCWE-121: Availability: Modify Memory, DoS: Crash, Exit, or Restart, DoS: Resource Consumption (CPU), DoS: Resource Consumption (Memory)…[email protected]

CISA KEV & Federal Remediation Deadline from the record and CISA

The fix, and how long it's been waiting.

Fixed inNo fix version in held sources, as the index stood on 2 Sep 2026.
Patch available sinceNo dated patch-availability record in held sources. The index holds reference URLs without dates and only the current revision of the CVE record, so the day a fix first existed cannot be derived. Only the versions it landed in.

Exploit Status & Known PoCs a ladder, not a score

Current rung: Nothing observed in held sources.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published
  • RUNG 3Exploited in the wild · CISA KEV listed
  • RUNG 4Ransomware campaign use known

Authority who says so

Exploit probability0.08493 · top 5% of all CVEsreceipt
Blast breadth1 product across 1 vendorderived
Assigned bymitrereceipt
Recorded changes27 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Named in the CPE rangesTenda ac8 firmwarereceipt
Published rangestenda ac8 firmware 16.03.34.06receipt

A rung lights from a row in the index, never from an assessment. "Held sources" is the true scope of the claim: this index reads the CVE record, NVD, CISA KEV, FIRST's EPSS and public proof-of-concept repositories, and it does not observe attacks.

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What it is stated by the CNA

Tenda AC8V4 V16.03.34.06` was discovered to contain stack overflow at /goform/saveParentControlInfo. The manipulation of the argument time leads to stack-based buffer overflow. receipt

NVD's analysis a second authority

weakness
CWE-121
affected versions
tenda ac8 firmware 16.03.34.06
also scored by
8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L

check it yourself github.com receipt

Movement the material steps

25 Jul 20250.00042
15 Jun 20260.07956 · scoring model v2026.06.15
2 Sep 20260.08493
Show all 27 observations
25 Jul 20250.00042
29 Jul 20250.00053
30 Jul 20250.00052
16 Aug 20250.00071
25 Aug 20250.00077
4 Sep 20250.00105
30 Sep 20250.0011
18 Nov 20250.0008
21 Nov 20250.0011
23 Nov 20250.00142
20 Dec 20250.00211
21 Dec 20250.00203
1 Jan 20260.00241
17 Feb 20260.00272
27 Feb 20260.00259
29 Mar 20260.00282
9 Apr 20260.00368
19 Apr 20260.0041
10 May 20260.00445
20 May 20260.01249
15 Jun 20260.07956
24 Jun 20260.08426
5 Jul 20260.07856
13 Aug 20260.08024
29 Aug 20260.08089
1 Sep 20260.08739
2 Sep 20260.08493

27 observations held. A highlighted step crossed a promotion threshold. A step marked with a scoring model moved because the instrument was replaced, not because the vulnerability changed. receipt

The full biography

EPSS 0.08493Published2025-07-24Index as of2026-09-02

The record had been public for 1 year, 1 month when this index was last written.

Published 2025-07-24 receipt · Index as of 2026-09-02 derived

The pattern, elsewhere

This record is one instance of CWE-121, stack-based buffer overflow. The index holds 3820 prior instances of this class, 19 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2025-0282 · Ivanti Connect Securenothing comparable heldKEV listed · 2025receipt
CVE-2025-22457 · Ivanti Connect Securenothing comparable heldKEV listed · 2025receipt
CVE-2021-20038 · SonicWall SMA100nothing comparable heldKEV listed · 2021receipt
CVE-2021-27137 · DD-WRTnothing comparable heldKEV listed · 2026receipt
CVE-2025-20352 · Cisco IOSnothing comparable heldKEV listed · 2025receipt
CVE-2025-32756 · Fortinet FortiNDRnothing comparable heldKEV listed · 2025receipt

"Matches n of m" counts the attributes the two records can both be compared on: the CVSS metrics they share a version of, any weakness class beyond this one, and the vendor. fit-rules@v1

3820 records in this class held. The six above are drawn from the ones CISA has listed as exploited, ranked by how much of the record matches this one. That is why every one of them is KEV-listed: the pool is, so the colour on those spokes says nothing the pool has not already said.

No curated product neighbourhood is held for this product, so the records above are the nearest this index can name. The neighbourhood table covers a small set of products and is extended by hand.

Siblings and hubs

Records related to this one

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What usually comes next

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