Unauthenticated memory corruption via unbounded sprintf
Published Mar 4, 2026 · Updated Mar 4, 2026
Stack buffer overflow in D-Link DIR-513 1.10 allows remote attackers to corrupt memory via curTime in two unauthenticated HTTP handlers. The formLogin and getAuthCode handlers pass the attacker-controlled curTime value through a local variable to sprintf without a length bound, overwriting a stack buffer. Crafted requests reach the handlers without credentials; the public report establishes memory corruption but does not demonstrate code execution or a specific service interruption.
Summary
What happened
Stack buffer overflow in D-Link DIR-513 1.10 allows remote attackers to corrupt memory via curTime in two unauthenticated HTTP handlers. The formLogin and getAuthCode handlers pass the attacker-controlled curTime value through a local variable to sprintf without a length bound, overwriting a stack buffer. Crafted requests reach the handlers without credentials; the public report establishes memory corruption but does not demonstrate code execution or a specific service interruption.
The record
- CVE
- CVE-2025-70222
- Published
- Mar 4, 2026
- Updated
- Mar 4, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-121, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 4, 2026CVE publishedPublication date reported by the CVE source.
- Mar 4, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What is affected?
Affected products and versions are unavailable in this record.
Published CVSS scores
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.
Weakness, pattern, technique
Public exploit references
- CVE-2025-70222 HTTP POST proof of conceptproof of concept · unverified
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Technologies
Your stack
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Your stack
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