CVE-2026-7851Disclosure(dlink / di-8100)

LOWCVSS 7.3 · HIGH

Signal is active with 3 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

A vulnerability was identified in D-Link DI-8100 16.07.26A1. This affects the function sprintf of the file yyxz.asp. The manipulation of the argument ID leads to stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit is publicly available and might be used.

dlink CVEs Back to dashboard

0.0/ 10 priority

Sources & remediation

Exploit / PoC references

https://github.com/draw-ctf/report/blob/main/DI-8100/yyxz_dlink_asp_overflow.md

Vendor / third-party advisories

Other references

Weakness type (CWE)

CWE-119CWE-121

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

NONE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

di-8100
di-8100_firmware

Threat summary

5 mentions across 2 observed days
Momentum state: stable

What's happening

Technical details provided in 5 signals
Disclosure: 5 classified signals
Peaked at 3 mentions on most recent observed day (2026-06-05)
5 total mentions across 2 days

Affected systems

Vendors

dlink

Products

di-8100di-8100_firmware

2 versions affected across 2 products

Deep dive

Activity timeline5 mentions / 2d

Signal classification1 categories

Disclosure

5100.0%

Referenced assets3 URLs

By indicator

Classification over time

Date	Total	Labels

2026-05-05	2	Disclosure2
2026-06-05	3	Disclosure3

Full discourse5 posts

Lyrie.ai@lyrie_ai127d
Disclosure
TL;DR CVE-2026-7851 exposes a critical stack-based buffer overflow in D-Link DI-8100 routers (firmware 16.07.26A1 and earlier). Attackers with admin access can trigger unauthenticated remote code execution via the yyxz.asp endpoint, converting the gateway from a network…
Post summary
The text discloses a critical stack‑based buffer overflow in D‑Link DI‑8100 routers (firmware 16.07.26A1 and earlier) that allows unauthenticated remote code execution via the yyxz.asp endpoint.
1000041
246 followersView on X
Lyrie.ai@lyrie_ai127d
Disclosure
Sources CVE-2026-7851 (NVD): draw-ctf GitHub Report: CVE Record (http://CVE.org): The Gateway That Became the Backdoor: CVE-2026-7851 Turns D-Link DI-8100 Into a Remote Code Execution Engine
Post summary
The article announces a newly disclosed remote code execution vulnerability (CVE-2026-7851) affecting the D-Link DI-8100 router.
1000042
246 followersView on X
Lyrie.ai@lyrie_ai127d
Disclosure
The Gateway That Became the Backdoor: CVE-2026-7851 Turns D-Link DI-8100 Into a Remote Code Execution Engine. The vulnerable endpoint processes an id parameter with no input validation, allowing attackers to overflow the stack frame and gain arbitrary code execution on…
Post summary
The article reveals that D‑Link DI‑8100’s endpoint fails to validate the id parameter, causing a stack overflow that enables remote code execution, but no PoC, exploit code, or patch is provided.
1000045
246 followersView on X
CVE@CVEnew157d
Disclosure
CVE-2026-7851 A vulnerability was identified in D-Link DI-8100 16.07.26A1. This affects the function sprintf of the file yyxz.asp. The manipulation of the argument ID leads to stack-… https://www.cve.org/CVERecord?id=CVE-2026-7851
Post summary
The post announces the discovery of CVE-2026-7851 in a D‑Link device, describing a buffer overflow via the sprintf function in yyxz.asp, but does not provide exploit code, active exploitation evidence, or patch information.
00001133
57.4K followersView on X
Infoflowcloud@infoflowcloud157d
Disclosure
🚨*CVE* CVE-2026-7851 A vulnerability was identified in D-Link DI-8100 16.07.26A1. This affects the function sprintf of the file yyxz.asp. The manipulation of the argument ID leads to stack-… https://www.cve.org/CVERecord?id=CVE-2026-7851 ----- Traducción: CVE-2026-7851 Se … http://infoflow.cloud`
Post summary
The tweet announces CVE‑2026‑7851, provides a brief technical description of a potential stack overflow via sprintf in a D‑Link router, but offers no PoC, exploit, patch, or evidence of active exploitation.
0000031
75 followersView on X

CPE platform detail2 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

2 of 2 entries

Part	Vendor	Product	Version	Target SW	Target HW
HW	dlink	di-8100	-	-	-
OS	dlink	di-8100_firmware	16.07.26a1	-	-

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What researchers are saying

CVE-2026-7851

Lyrie.ai[verified]@lyrie_aiDisclosure

The text discloses a critical stack‑based buffer overflow in D‑Link DI‑8100 routers (firmware 16.07.26A1 and earlier) that allows unauthenticated remote code execution via the yyxz.asp endpoint.

Lyrie.ai[verified]@lyrie_aiDisclosure

The article announces a newly disclosed remote code execution vulnerability (CVE-2026-7851) affecting the D-Link DI-8100 router.

Lyrie.ai[verified]@lyrie_aiDisclosure

The article reveals that D‑Link DI‑8100’s endpoint fails to validate the id parameter, causing a stack overflow that enables remote code execution, but no PoC, exploit code, or patch is provided.

CVE@CVEnewDisclosure

The post announces the discovery of CVE-2026-7851 in a D‑Link device, describing a buffer overflow via the sprintf function in yyxz.asp, but does not provide exploit code, active exploitation evidence, or patch information.

Infoflowcloud@infoflowcloudDisclosure

The tweet announces CVE‑2026‑7851, provides a brief technical description of a potential stack overflow via sprintf in a D‑Link router, but offers no PoC, exploit, patch, or evidence of active exploitation.