CVE-2025-60686

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Summary

CVECVE-2025-60686
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-11-13 16:15:52 UTC
Updated2026-07-05 02:17:12 UTC
DescriptionA local stack-based buffer overflow vulnerability exists in the infostat.cgi and cstecgi.cgi binaries of ToToLink routers (A720R V4.1.5cu.614_B20230630, LR1200GB V9.1.0u.6619_B20230130, and NR1800X V9.1.0u.6681_B20230703). Both programs parse the contents of /proc/net/arp using sscanf() with "%s" format specifiers into fixed-size stack buffers without length validation. Specifically, one function writes user-controlled data into a single-byte buffer, and the other into adjacent small arrays without bounds checking. An attacker who controls the contents of /proc/net/arp can trigger memory corruption, leading to denial of service or potential arbitrary code execution.

Risk And Classification

Primary CVSS: v3.1 5.1 MEDIUM from ADP

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

EPSS: 0.001960000 probability, percentile 0.095670000 (date 2026-07-07)

Problem Types: CWE-121 | n/a | CWE-121 CWE-121 Stack-based Buffer Overflow

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED5.1MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary5.1MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
Low

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Hardware Totolink A720r - All All All
Operating System Totolink A720r Firmware 4.1.5cu.614_b20230630 All All All
Hardware Totolink Lr1200gb - All All All
Operating System Totolink Lr1200gb Firmware 9.1.0u.6619_b20230130 All All All
Hardware Totolink Nr1800x - All All All
Operating System Totolink Nr1800x Firmware 9.1.0u.6681_b20230703 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
www.totolink.net [email protected] www.totolink.net Product
github.com/yifan20020708/SGTaint-0-day/blob/main/ToToLink/ToToLink-A720R... [email protected] github.com Exploit, Third Party Advisory
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NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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