Authenticated crash via unbounded lan_ipaddr stack copy
Published Jan 21, 2025 · Updated Jan 22, 2025
Buffer overflow in Linksys E8450 firmware 1.2.00.360516 allows remote authenticated users to crash the router via a crafted lan_ipaddr value. The sub_422eb8 JSON parser passes the attacker-controlled value to strcpy, copying it into a fixed stack buffer without a length check. Adjacent-network access and low-privilege authentication are required; the published proof of concept demonstrates a crash, not code execution.
Summary
What happened
Buffer overflow in Linksys E8450 firmware 1.2.00.360516 allows remote authenticated users to crash the router via a crafted lan_ipaddr value. The sub_422eb8 JSON parser passes the attacker-controlled value to strcpy, copying it into a fixed stack buffer without a length check. Adjacent-network access and low-privilege authentication are required; the published proof of concept demonstrates a crash, not code execution.
The record
- CVE
- CVE-2024-57544
- Published
- Jan 21, 2025
- Updated
- Jan 22, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-120, T1499.004
- Attack vector
- adjacent
- Privileges
- authenticated
Timeline
How it unfolded
- Jan 21, 2025CVE publishedPublication date reported by the CVE source.
- Jan 22, 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?
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
- Authenticated lan_ipaddr crash proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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