5.3

CVE-2020-27970: yandex yandex_browser Authentication Bypass by Spoofing

Modified
Published 13-09-2021Last modified 04-08-2024

Vulnerability summary

CVE-2020-27970 is a medium (CVSS 5.3) Authentication Bypass by Spoofing vulnerability in yandex yandex_browser. EPSS estimates a 1.80% chance of exploitation in the next 30 days, higher than 78.2% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.1 (NVD)
EPSS score
1.80%
0%100%
Low · +0.47 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Timeline

  1. 13-09-2021
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

Yandex Browser before 20.10.0 allows remote attackers to spoof the address bar

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

1.80%

Chance of exploitation in the next 30 days

Percentile

78%

Versus all other CVEs

30-day change

Increase +0.47 pp

From 1.32% on 22-09-2026

22-09-202622-10-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Yandex1 product

1 vendor · 1 product

References

1 links