CVE-2025-7910Public exploitNetwork attack vector

Authenticated Boa crash via unchecked curTime formatting

Published Jul 20, 2025 · Updated Jul 21, 2025

Stack overflow in the DIR-513 1.10 Boa Webserver allows remote authenticated users to crash the Boa process with a crafted request. formSetWanNonLogin passes the unbounded curTime POST value to sprintf, which writes into a fixed-size stack buffer and can overwrite the return address. Low-privilege web access is required; return-address overwrite is documented, but reliable code execution has not been demonstrated.

CVSS severity8.8
High
EPSS probability1.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack overflow in the DIR-513 1.10 Boa Webserver allows remote authenticated users to crash the Boa process with a crafted request. formSetWanNonLogin passes the unbounded curTime POST value to sprintf, which writes into a fixed-size stack buffer and can overwrite the return address. Low-privilege web access is required; return-address overwrite is documented, but reliable code execution has not been demonstrated.

The record

CVE
CVE-2025-7910
Published
Jul 20, 2025
Updated
Jul 21, 2025
Vendor
D-Link
Product
DIR-513
Classifications
CWE-119, CWE-121, T1210
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 20, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 21, 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=1.10

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

D-Link · DIR-513version=1.10

Published CVSS scores

7.4VulDBCVSS: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
8.8VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
9.0VulDBAV:N/AC:L/Au:S/C:C/I:C/A:C

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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
T1210Exploitation of Remote Services

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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