CVE-2022-26987: fastcom fac1900r_firmware Out-of-bounds Write
CVSS: 7.8v3.1HighModified
Published 10-05-2022Last modified 09-07-2026
Vulnerability summary
CVE-2022-26987 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in fastcom fac1900r_firmware. EPSS estimates a 1.52% chance of exploitation in the next 30 days, higher than 74.2% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
7.8/10
010
High · v3.1 (NVD)EPSS score
1.52%
0%100%
Low · +0.10 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Timeline
- 10-05-2022PublishedVulnerability first disclosed.
- 09-07-2026Last modifiedVulnerability information updated.
Description
TP-Link TL-WDR7660 2.0.30, Mercury D196G 20200109_2.0.4, and Fast FAC1900R 20190827_2.0.2 routers have a stack overflow issue in `MmtAtePrase` function. Local users could get remote code execution.
CVSS metrics
2 scores · 1 source · 2 versionsHigh 7.8Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSourcesSingle source
High 7.2Preferred score · NVD (NIST)
AV:L/AC:L/Au:N/C:C/I:C/A:CSourcesSingle source
EPSS trend
Probability
1.52%
Chance of exploitation in the next 30 days
Percentile
74%
Versus all other CVEs
30-day change
+0.10 pp
From 1.42% on 21-09-2026
21-09-202621-10-2026
EPSS score1.52%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (drive.google.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Tp-link4 products
Fastcom1 product
- fac1900r_firmware20190827_2.0.2
Mercusys1 product
- mercury_d196g_firmware20200109_2.0.4
3 vendors · 6 products
References
2 links- drive.google.com/file/d/1SnNoqRlJiBD673UROLwdgg_roMOneVR9/view?usp=sharingExploitThird Party Advisory
- github.com/GANGE666Third Party Advisory