CVE-2026-4188Disclosure

LOWCVSS 7.4 · HIGH

Exploit discussion active in current signal (3 latest mentions)

Immediate actions

Prioritize remediation for affected systems immediately
Hunt for exploitation attempts and persistence artifacts
Increase monitoring for publicly documented tradecraft
Track advisory updates for patch or workaround availability

Recommended action window: High priority (within 72h)

NVD description

A security flaw has been discovered in D-Link DIR-619L 2.06B01. The affected element is the function formSchedule of the file /goform/formSchedule of the component boa. Performing a manipulation of the argument curTime results in stack-based buffer overflow. The attack may be initiated remotely. The exploit has been released to the public and may be used for attacks. This vulnerability only affects products that are no longer supported by the maintainer.

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3.5/ 10 priority

Sources & remediation

Other references

Weakness type (CWE)

CWE-119CWE-121

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

NONE

Momentum

STABLE

Threat summary

Public PoC and exploit tooling are both present
6 mentions across 3 observed days
Momentum state: stable

What's happening

Exploit tool or code specified in 1 signal
PoC mentioned or linked in 1 signal
Technical details provided in 5 signals
Disclosure: 4 classified signals
General: 1 classified signal
Peaked at 3 mentions on most recent observed day (2026-03-16)
6 total mentions across 3 days

Deep dive

Activity timeline6 mentions / 3d

Signal classification3 categories

Disclosure

466.7%

Exploit

116.7%

General

116.7%

Referenced assets10 URLs

By indicator

Classification over time

Date	Total	Labels

2026-03-14	1	Disclosure1
2026-03-15	2	Exploit1General1
2026-03-16	3	Disclosure3

Full discourse6 posts

dbugs@ptdbugs209d
Exploit
D-Link DIR-619L boa formSchedule stack-based overflow CVE: CVE-2026-4188 PT-Identifier: PT-2026-25535 Vendor: D-link Product: DIR-619L CVSS: 8.7 Credits: pjqwudi (VulDB User) Description: A security flaw has been discovered in D-Link DIR-619L 2.06B01. The affected element is the function formSchedule of the file /goform/formSchedule of the component boa. Performing a manipulation of the argument curTime results in stack-based buffer overflow. The attack may be initiated remotely. The exploit has been released to the public and may be used for attacks. This vulnerability only affects products that are no longer supported by the maintainer. References: • https://dbugs.ptsecurity.com/vulnerability/CVE-2026-4188 • https://vuldb.com/?id.351094 • https://vuldb.com/?ctiid.351094 • https://vuldb.com/?submit.769833 • https://github.com/wudipjq/my_vuln/blob/main/D-Link7/vuln_89/89.md • https://www.dlink.com/ #dbugs_vuln
Post summary
A stack‑based buffer overflow in D‑Link DIR‑619L’s formSchedule function has been disclosed, with a public exploit and PoC available, but no evidence of active exploitation.
0000183
613 followersView on X
The Hacker Wire@TheHackerWire208d
Disclosure
🟠 CVE-2026-4188 - High A security flaw has been discovered in D-Link DIR-619L 2.06B01. The affected element is the function formSchedule of the file /goform/formSchedule of the component boa. Performing a manipulati... https://www.thehackerwire.com/vulnerability/CVE-2026-4188/ https://t.co/SQgNrzeV4c
Post summary
The tweet announces a high‑severity vulnerability (CVE‑2026‑4188) in D‑Link DIR‑619L routers, describing the affected function but offering no patches, PoC, or evidence of exploitation.
0000054
136 followersView on X
CVEFind.com@CveFindCom208d
Disclosure
[CVE-2026-4188: HIGH] Security alert: Vulnerability found in D-Link DIR-619L 2.06B01 allowing remote exploitation via stack-based buffer overflow in boa component. Only affects outdated products.#cve,CVE-2026-4188,#cybersecurity https://cvefind.com/CVE-2026-4188
Post summary
The alert announces that D‑Link DIR‑619L firmware 2.06B01 is vulnerable to a stack‑based buffer overflow allowing remote exploitation.
0000048
601 followersView on X
CVE@CVEnew209d
Disclosure
CVE-2026-4188 A security flaw has been discovered in D-Link DIR-619L 2.06B01. The affected element is the function formSchedule of the file /goform/formSchedule of the component boa.… https://www.cve.org/CVERecord?id=CVE-2026-4188
Post summary
The post announces the discovery of CVE-2026-4188 in D‑Link DIR‑619L, specifying the vulnerable function but providing no PoC, exploit, patch, or active exploitation evidence.
00000121
56.7K followersView on X
CyberDudeBivash® | Global Cybersecurity Company@cyberbivash209d
General
🚨 CYBERDUDEBIVASH SENTINEL APEX ALERT 🚨 Threat: CVE-2026-4188 - D-Link DIR-619L boa formSchedule stack-based overflow Intel Report: https://ift.tt/wgE38jq
Post summary
A new stack‑based buffer overflow vulnerability (CVE‑2026‑4188) affecting the D‑Link DIR‑619L router has been disclosed, with a report link provided. No evidence of active exploitation, PoC, or patch details is presented.
0000038
336 followersView on X
VulDB 🛡@vuldb210d
Disclosure
The severity is increased for this new vulnerability affecting D-Link DIR-619L (CVE-2026-4188) https://vuldb.com/?id.351094
Post summary
A new vulnerability, CVE‑2026‑4188, affecting the D‑Link DIR‑619L has been announced with its severity increased; the post does not include exploitation details or patch information.
0000092
2.1K followersView on X

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What researchers are saying

CVE-2026-4188

dbugs[verified]@ptdbugsExploit

A stack‑based buffer overflow in D‑Link DIR‑619L’s formSchedule function has been disclosed, with a public exploit and PoC available, but no evidence of active exploitation.

The Hacker Wire@TheHackerWireDisclosure

The tweet announces a high‑severity vulnerability (CVE‑2026‑4188) in D‑Link DIR‑619L routers, describing the affected function but offering no patches, PoC, or evidence of exploitation.

CVEFind.com@CveFindComDisclosure

The alert announces that D‑Link DIR‑619L firmware 2.06B01 is vulnerable to a stack‑based buffer overflow allowing remote exploitation.

CVE@CVEnewDisclosure

The post announces the discovery of CVE-2026-4188 in D‑Link DIR‑619L, specifying the vulnerable function but providing no PoC, exploit, patch, or active exploitation evidence.

CyberDudeBivash® | Global Cybersecurity Company@cyberbivashGeneral

A new stack‑based buffer overflow vulnerability (CVE‑2026‑4188) affecting the D‑Link DIR‑619L router has been disclosed, with a report link provided. No evidence of active exploitation, PoC, or patch details is presented.

VulDB 🛡@vuldbDisclosure

A new vulnerability, CVE‑2026‑4188, affecting the D‑Link DIR‑619L has been announced with its severity increased; the post does not include exploitation details or patch information.