Unauthenticated memory corruption via unbounded curTime copy
Published Mar 4, 2026 · Updated Mar 4, 2026
Stack-based buffer overflow in D-Link DIR-513 firmware 1.10 allows remote attackers to corrupt memory through a crafted HTTP request. The formAutoDetecWAN_wizard4 handler passes the unbounded curTime form value through sprintf into a fixed-size stack buffer. No authentication or user interaction is required; the public record confirms memory corruption but does not document achieved code execution.
Summary
What happened
Stack-based buffer overflow in D-Link DIR-513 firmware 1.10 allows remote attackers to corrupt memory through a crafted HTTP request. The formAutoDetecWAN_wizard4 handler passes the unbounded curTime form value through sprintf into a fixed-size stack buffer. No authentication or user interaction is required; the public record confirms memory corruption but does not document achieved code execution.
The record
- CVE
- CVE-2025-70220
- 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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Is a vulnerable build present?
What conditions does exploitation require?
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-2025-70220 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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