CVE-2021-40834: f-secure f-secure mobile security
CVSS: 4.3v3.1MediumModified
Published 10-12-2021Last modified 04-08-2024
Vulnerability summary
CVE-2021-40834 is a medium (CVSS 4.3) vulnerability in f-secure f-secure mobile security. EPSS estimates a 0.75% chance of exploitation in the next 30 days, higher than 54.1% of scored vulnerabilities.
CVSS score
4.3/10
010
Medium · v3.1 (CVE.org)EPSS score
0.75%
0%100%
Low · +0.02 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 10-12-2021PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
A user interface overlay vulnerability was discovered in F-secure SAFE Browser for Android. When user click on a specially crafted seemingly legitimate URL SAFE browser goes into full screen and hides the user interface. A remote attacker can leverage this to perform spoofing attack.
CVSS metrics
3 scores · 2 sources · 2 versionsMedium 4.3Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:LSourcesAll 2 agree
- NVDNIST4.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Medium 4.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:N/I:P/A:NSourcesSingle source
EPSS trend
Probability
0.75%
Chance of exploitation in the next 30 days
Percentile
54%
Versus all other CVEs
30-day change
+0.02 pp
From 0.73% on 19-09-2026
19-09-202619-10-2026
EPSS score0.75%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
F-secure2 products
- f-secure mobile security≥ 18.5x, < 17.9*
- safe≤ 17.9
1 vendor · 2 products
References
2 links- www.f-secure.com/en/business/programs/vulnerability-reward-program/hall-of-fameX Refsource MISCVendor Advisory
- www.f-secure.com/en/business/support-and-downloads/security-advisories/cve-2021-40834X Refsource MISCVendor Advisory