CVE-2025-12433VulnerabilityPublished 10 Nov 2025

CVE-2025-12433: Google Chrome · Inappropriate implementation

Affects Google ChromeSource CVE Database V5

Not known to be exploited · CVSS 4.3 Medium.

Data as of 26 Oct 2026, 06:26 UTC

CVSS 3.1 base score

4.3Medium

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.2% chance of exploitation in 30 days – higher than 21% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

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

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: Required
Scope: Unchanged
Confidentiality: Low
Integrity: None
Availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: Required: Successful exploitation of this vulnerability requires a user to take some action before the vulnerability can be exploited.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: Low: There is some loss of confidentiality. Access to some restricted information is obtained, but the attacker does not have control over what information is obtained, or the amount or kind of loss is limited. The information disclosure does not cause a direct, serious loss to the impacted component.
Integrity: None: There is no loss of integrity within the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 10 Nov 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Affected software

Product	Affected	Fixed in
Google Chrome	Affected =142.0.7444.59	Fixed in–

AI-suggested

To mitigate CVE-2025-12433, European organizations should immediately update all Chrome installations to version 142.0.7444.59 or later. Automated patch management systems should be leveraged to ensure rapid deployment across all endpoints. Network security teams should monitor web traffic for unusual or suspicious activity, particularly visits to untrusted or unknown websites. Implementing web filtering and restricting access to potentially malicious sites can reduce exposure. Organizations should also consider deploying browser security extensions or sandboxing technologies to limit the impact of any successful exploitation. User awareness training should emphasize the risks of visiting untrusted websites and the importance of keeping browsers updated. Additionally, endpoint detection and response (EDR) solutions should be tuned to detect anomalous behaviors indicative of exploitation attempts. Regular vulnerability scanning and penetration testing can help identify unpatched systems and verify mitigation effectiveness.

Description

Inappropriate implementation in V8 in Google Chrome prior to 142.0.7444.59 allowed a remote attacker to perform out of bounds memory access via a crafted HTML page. (Chromium security severity: High)

Impact

For European organizations, the impact of CVE-2025-12433 can be substantial. Since Chrome is a dominant browser in Europe, many enterprises, government agencies, and critical infrastructure operators rely on it for daily operations. Exploitation could lead to unauthorized access to sensitive data, compromise of user credentials, or deployment of malware within corporate networks. This is particularly critical for sectors such as finance, healthcare, and government, where data confidentiality and system integrity are paramount. Additionally, the vulnerability could be used as an initial foothold for more extensive network intrusions or espionage campaigns. The potential for widespread impact is heightened by the ease of exploitation via web content, which is ubiquitous in organizational environments. Failure to patch promptly could result in increased risk of targeted attacks or opportunistic exploitation by cybercriminals.

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 10 Nov 2025, 20:39 UTC

Technical details

References

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