CVE-2022-44255: totolink lr350_firmware Out-of-bounds Write
CVSS: 9.8v3.1CriticalModified
Published 23-11-2022Last modified 25-04-2025
Vulnerability summary
CVE-2022-44255 is a critical (CVSS 9.8) Out-of-bounds Write vulnerability in totolink lr350_firmware. EPSS estimates a 2.28% chance of exploitation in the next 30 days, higher than 82.9% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)EPSS score
2.28%
0%100%
Low · +0.08 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Timeline
- 23-11-2022PublishedVulnerability first disclosed.
- 25-04-2025Last modifiedVulnerability information updated.
Description
TOTOLINK LR350 V9.3.5u.6369_B20220309 contains a pre-authentication buffer overflow in the main function via long post data.
CVSS metrics
2 scores · 2 sources · 1 versionCritical 9.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesAll 2 agree
- NVDNIST9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
2.28%
Chance of exploitation in the next 30 days
Percentile
83%
Versus all other CVEs
30-day change
+0.08 pp
From 2.19% on 21-09-2026
21-09-202621-10-2026
EPSS score2.28%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (brief-nymphea-813.notion.site)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Totolink1 product
- lr350_firmware9.3.5u.6369_b20220309
1 vendor · 1 product
References
1 links- brief-nymphea-813.notion.site/LR350-bof-main-pre-authentication-9475d39331cd4d8bae67c8560ce279b7ExploitThird Party Advisory