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NVD / CVE Program· CNA rapid7

CVE-2020-7369: Yandex Browser Address Bar Spooofing

Noroxi assessment

Priority: Monitor (action score 17/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.99% (FIRST EPSS); higher than 62.5% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. A user must open a link or visit a page. No special conditions are required; it is repeatable.
  • Fixed version: Yandex Yandex Browser 20.8.4.

Low priority for now. Upgrade to Yandex Yandex Browser 20.8.4 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

User Interface (UI) Misrepresentation of Critical Information vulnerability in the address bar of the Yandex Browser allows an attacker to obfuscate the true source of data as presented in the browser. This issue affects the Yandex Browser version 20.8.3 and prior versions, and was fixed in version 20.8.4 released October 1, 2020.

MediumCVSS 4.3 · v3.1—No exploit Fix available
Published
Oct 20, 2020
Updated
Jun 16, 2026
EPSS
0.9% · 62th percentile

Report tools

JSON

Action score

17

Monitor

Low priority for now.

CVSS
17 / 40 · 4.3 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.9%

CNA vs NVD score

NVD
4.3
CNA · rapid7
4.3
agree

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
yandexyandex browser

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • yandex yandex browserbefore 20.8.4

Versions reported by the vendor

Affected version ranges reported by the assigning authority (rapid7). Independent of NVD's CPE analysis and usually ahead of it.

  • Yandex Yandex Browser

    • 20.8.3 and later · up to and including 20.8.3affected

Same product

yandex: all records

Other highest-scoring records for the same primary product.

  • CVE-2021-25255Yandex Browser Lite for Android prior to version 21.1.0 allows remote attackers to cause a denial of service.
    33Monitor
  • CVE-2024-6473DLL Hijacking in Yandex Browser
    33Monitor
  • CVE-2021-25254Yandex Browser Lite for Android before 21.1.0 allows remote attackers to spoof the address bar.
    32Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2017-7326Jan 19, 2018 · Race condition issue in Yandex Browser for Android before 17.4.0.16 allowed a remote attacker to potentially exploit memory corruption via a
    30Monitor
  • ← EarlierCVE-2017-7327Jan 19, 2018 · Yandex Browser installer for Desktop before 17.4.1 has a DLL Hijacking Vulnerability because an untrusted search path is used for dnsapi.dll
    31Monitor
  • Later →CVE-2021-25263Aug 17, 2021 · Local privilege vulnerability in Yandex Browser for Windows prior to 21.9.0.390 allows a local, low privileged, attacker to execute arbitary
    31Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Yandex Yandex Browser20.8.4 · descriptionVendor (CNA)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
low · data can be read
Integrity
none
Availability
none
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality impact
Low
Integrity impact
None
Availability impact
None

Weakness class (CWE)

CWE-451 · User Interface (UI) Misrepresentation of Critical Information

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

  1. Fix✗ → ✓

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