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CVE-2025-10948

MikroTik RouterOS libjson.so print parse_json_element buffer overflow

Published: Sep 25, 2025Updated: Oct 13, 2025 Sources: CVE List NVD BDUCWE-119
NVD MITRE
8.8CVSSHIGH
EPSS Score
0.7%
Top 51.3%
CISA KEV
Not in KEV
Exploits
3 Known
Remediation
Patch Available

Description

A vulnerability has been found in MikroTik RouterOS 7. This affects the function parse_json_element of the file /rest/ip/address/print of the component libjson.so. The manipulation leads to buffer overflow. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 7.20.1 and 7.21beta2 mitigates this issue. You should upgrade the affected component. The vendor replied: "Our bug tracker reports that your issue has been fixed. This means that we plan to release a RouterOS update with this fix. Make sure to upgrade to the next release when it comes out."

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-119CWE-120

Affected Products

RouterOSMikroTik
On-premNetwork Device
Networking Infrastructure / router-switch
mikrotikcommercialLVNetworking Infrastructureaka routeros, winbox

Attack Graph

Products CVE Techniques Tactics

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Exploitability

3 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://github.com/a2ure123/libjson-unicode-buffer-overflow-poc
github.com
https://github.com/a2ure123/libjson-unicode-buffer-overflow-poc#technical-proof-of-concept
github.com
https://vuldb.com/?ctiid.325818
vuldb.com
and 3 more references View all →

Timeline

Published
Sep 25, 2025
Last Updated
Oct 13, 2025

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