CVE-2025-28019: totolink a800r_firmware Classic Buffer Overflow
CVSS: 7.3v3.1HighAnalyzed
Published 23-04-2025Last modified 24-04-2025
Vulnerability summary
CVE-2025-28019 is a high (CVSS 7.3) Classic Buffer Overflow vulnerability in totolink a800r_firmware. EPSS estimates a 0.48% chance of exploitation in the next 30 days, higher than 40.7% of scored vulnerabilities. 2 public exploits are recorded.
CVSS score
7.3/10
010
High · v3.1 (CVE.org)EPSS score
0.48%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits2reference
Timeline
- 23-04-2025PublishedVulnerability first disclosed.
- 24-04-2025Last modifiedVulnerability information updated.
Description
TOTOLINK A800R V4.1.2cu.5137_B20200730 was found to contain a buffer overflow vulnerability in the downloadFile.cgi component
CVSS metrics
2 scores · 2 sources · 1 versionHigh 7.3Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:LSourcesAll 2 agree
- NVDNIST7.3HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
EPSS trend
Probability
0.48%
Chance of exploitation in the next 30 days
Percentile
41%
Versus all other CVEs
30-day change
0.00 pp
From 0.48% on 21-09-2026
21-09-202621-10-2026
EPSS score0.48%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
2 foundExploit Reference (locrian-lightning-dc7.notion.site)
Maturity: unknown
Exploit Reference (locrian-lightning-dc7.notion.site)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Totolink1 product
- a800r_firmware4.1.2cu.5137_b20200730
1 vendor · 1 product
References
2 links- locrian-lightning-dc7.notion.site/BufferOverflow1-1948e5e2b1a280ad96efca529ecae658ExploitThird Party Advisory
- locrian-lightning-dc7.notion.site/CVE-2025-28019-BufferOverflow1-1948e5e2b1a280ad96efca529ecae658ExploitThird Party Advisory