CVE-2021-42850: lenovo a1_firmware Use of Hard-coded Credentials
Modified
Published 18-05-2022Last modified 04-08-2024
Vulnerability summary
CVE-2021-42850 is a high (CVSS 8.8) Use of Hard-coded Credentials vulnerability in lenovo a1_firmware. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 14.6% of scored vulnerabilities.
CVSS score
8.8/10
010
High · v3.1 (CVE.org)EPSS score
0.24%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded
Timeline
- 18-05-2022PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
A weak default administrator password for the web interface and serial port was reported in some Lenovo Personal Cloud Storage devices that could allow unauthorized device access to an attacker with physical or local network access.
CVSS metrics
3 scores · 2 sources · 2 versionsHigh 8.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSources2 sources · 7.8–8.8
- NVDNIST7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HDiffers
Medium 4.6Preferred score · NVD (NIST)
AV:L/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
0.24%
Chance of exploitation in the next 30 days
Percentile
15%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.24% on 23-09-2026
23-09-202623-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Lenovo10 products
- a1_firmware< 5.3.6.a1
- personal cloud storage a1≥ unspecified, < 5.3.6.a1
- personal cloud storage t1≥ unspecified, < 5.3.6.t1
- personal cloud storage t2≥ unspecified, < 5.3.8.t2
- personal cloud storage t2pro≥ unspecified, < 5.3.7.t2-pro
1 vendor · 10 products