CVE-2025-6882Public exploitNetwork attack vector

Authenticated code execution via curTime buffer overflow

Published Jun 30, 2025 · Updated Jun 30, 2025

Stack-based buffer overflow in D-Link DIR-513 firmware 1.0 allows remote authenticated users to execute arbitrary code via curTime. The /goform/formSetWanPPTP handler writes attacker-controlled curTime data beyond a stack buffer boundary; D-Link has not disclosed the exact unsafe operation. Access to the authenticated management interface is required, and successful exploitation can take control of the legacy router.

CVSS severityUnavailable
Unscored
EPSS probability0.71%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

Stack-based buffer overflow in D-Link DIR-513 firmware 1.0 allows remote authenticated users to execute arbitrary code via curTime. The /goform/formSetWanPPTP handler writes attacker-controlled curTime data beyond a stack buffer boundary; D-Link has not disclosed the exact unsafe operation. Access to the authenticated management interface is required, and successful exploitation can take control of the legacy router.

The record

CVE
CVE-2025-6882
Published
Jun 30, 2025
Updated
Jun 30, 2025
Vendor
D-Link
Product
DIR-513
Classifications
CWE-119, CWE-121, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 30, 2025CVE publishedPublication date reported by the CVE source.
  2. Jun 30, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

D-Link · DIR-513version=1.0

Published CVSS scores

8.7D-LinkCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
8.8D-LinkCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
9.0D-LinkAV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR
8.8D-LinkCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-121Stack-based Buffer Overflow
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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