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Vulnerability record · CVE-2025-8159 · published 25 July 2025

CVE-2025-8159: Dlink dir-513 firmware memory buffer overflow vulnerability

Dlink · Dir 513 Firmware

A vulnerability was found in D-Link DIR-513 1.0. It has been rated as critical. This issue affects the function formLanguageChange of the file /goform/formLanguageChange of the component HTTP POST Request Handler. The manipulation of the argument curTime leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

7.4 CVSS 4.0 High EPSS 17% · top 3.1% CWE-119 · Memory buffer overflowCWE-121 · Stack-based buffer overflow
7.4CVSS 4.0 base score, v2 9.0
17%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

A vulnerability was found in D-Link DIR-513 1.0. It has been rated as critical. This issue affects the function formLanguageChange of the file /goform/formLanguageChange of the component HTTP POST Request Handler. The manipulation of the argument curTime leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

CVSS: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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/boyslikesports/vul/blob/main/formLanguageChange.md Broken Link
https://vuldb.com/?ctiid.317573 Permissions RequiredVDB Entry
https://vuldb.com/?id.317573 Third Party AdvisoryVDB Entry
https://vuldb.com/?submit.620604 Third Party AdvisoryVDB Entry
https://www.dlink.com/ Product
https://github.com/boyslikesports/vul/blob/main/formLanguageChange.md Broken Link

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2025-70245Dlink dir-513 firmware out-of-bounds write vulnerabilityStack buffer overflow vulnerability in D-Link DIR-513 v1.10 via the curTime parameter to goform/formSetWizardSelectMode.EPSS 0.60%9.8CVE-2025-70232Dlink dir-513 firmware stack-based buffer overflow vulnerabilityStack buffer overflow vulnerability in D-Link DIR-513 v1.10 via the curTime parameter to goform/formSetMACFilter.EPSS 0.63%9.8CVE-2025-70233Dlink dir-513 firmware stack-based buffer overflow vulnerabilityStack buffer overflow vulnerability in D-Link DIR-513 v1.10 via the curTime parameter to goform/formSetEnableWizard.EPSS 0.63%9.8CVE-2025-70229Dlink dir-513 firmware stack-based buffer overflow vulnerabilityStack buffer overflow vulnerability in D-Link DIR-513 v1.10 via the curTime parameter to goform/formSchedule.EPSS 0.63%9.8CVE-2025-70230Dlink dir-513 firmware stack-based buffer overflow vulnerabilityStack buffer overflow vulnerability in D-Link DIR-513 v1.10 via the curTime parameter to goform/formSetDDNS.EPSS 0.78%9.8CVE-2025-70231Dlink dir-513 firmware path traversal vulnerabilityD-Link DIR-513 version 1.10 contains a critical-level vulnerability. When processing POST requests related to verification codes in /goform/formLogin…EPSS 0.66%9.8CVE-2025-70222Dlink dir-513 firmware stack-based buffer overflow vulnerabilityStack buffer overflow vulnerability in D-Link DIR-513 v1.10 via the curTime parameter to goform/formLogin,goform/getAuthCode.EPSS 0.49%9.8CVE-2025-70221Dlink dir-513 firmware stack-based buffer overflow vulnerabilityStack buffer overflow vulnerability in D-Link DIR-513 v1.10 via the curTime parameter to goform/formLogin.EPSS 0.49%

Source: NIST National Vulnerability Database (record CVE-2025-8159), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.