CVE-2023-26226Network attack vector

Memory corruption via use-after-free

Published May 30, 2025 · Updated May 30, 2025

Use-after-free in Yandex Browser for Desktop before 24.4.0.682 allows attackers to corrupt browser memory via unspecified vectors. Yandex has not published the affected component, the operation that frees an object, or the untrusted input that later accesses it. Exploitation requires passive user interaction and additional conditions, while the published record does not establish whether memory corruption yields code execution.

CVSS severity7.4
High
EPSS probability0.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in Yandex Browser for Desktop before 24.4.0.682 allows attackers to corrupt browser memory via unspecified vectors. Yandex has not published the affected component, the operation that frees an object, or the untrusted input that later accesses it. Exploitation requires passive user interaction and additional conditions, while the published record does not establish whether memory corruption yields code execution.

The record

CVE
CVE-2023-26226
Published
May 30, 2025
Updated
May 30, 2025
Vendor
Yandex
Product
Yandex Browser
Classifications
CWE-416, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 30, 2025CVE publishedPublication date reported by the CVE source.
  2. May 30, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <24.4.0.682

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Yandex · Yandex Browserversion=0 <24.4.0.682

Published CVSS scores

7.4Yandex N.V.CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:L/VA:H/SC:H/SI:H/SA:H
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-416Use After Free
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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