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CVE-2025-49490

16
FAUCET Score

CVE-2025-49490 is a resource leak vulnerability in ASR180x routers, specifically affecting ASRMicro's Falcon_Linux, Kestrel, and Lapwing_Linux products before version v1536. This flaw, located in the router/sms/sms.c program file, could lead to resource exhaustion. Rated with a CVSS score of 5.3 (MEDIUM), this vulnerability is network-exploitable with low attack complexity and requires no user interaction or privileges. Its potential impact is limited to a denial of service (availability loss). Currently, there is no evidence of active exploitation, nor are there publicly available exploit codes in Metasploit, Nuclei, or ExploitDB. The vulnerability has garnered minimal community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 1536CPE matchmatch criteria
cpe:2.3:o:asrmicro:falcon_linux:*:*:*:*:*:*:*:*
< 1536CPE matchmatch criteria
cpe:2.3:o:asrmicro:kestrel:*:*:*:*:*:*:*:*
< 1536CPE matchmatch criteria
cpe:2.3:o:asrmicro:lapwing_linux:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.4MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
2.8
Impact Score
2.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.24%
Probability of exploitation in next 30 days
EPSS Percentile
15.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0024 is in the 6th percentile among its peer group of 23,701 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

asrmicro.com / en/goods/psirt
Vendor Advisory