VulnerabilityPublished 6 Nov 2025Updated 12 Nov 2025

CVE-2025-11207: Google Chrome · Side-channel Information Leakage

Affects Google ChromeSource CVE Database V5

Not known to be exploited · CVSS 6.5 Medium : upgrade to 141.0.7390.54 when convenient.

Data as of 26 Oct 2026, 14:05 UTC

CVSS 3.1 base score

6.5Medium

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

EPSS: 0.2% chance of exploitation in 30 days – higher than 17% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 141.0.7390.54

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

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Unchanged
Confidentiality: Low
Integrity: Low
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: None: The vulnerable system can be exploited without any interaction from any user.
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: Low: Modification of data is possible, but the attacker does not have control over the consequence of a modification, or the amount of modification is limited. The data modification does not have a direct, serious impact on 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 6 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 26 Oct 2026.

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 or the CVSS exploit maturity 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

Upgrade Google Chrome to 141.0.7390.54.

Affected software

Product	Affected	Fixed in
Google Chrome	Affected =141.0.7390.54 <141.0.7390.54	Fixed in 141.0.7390.54

AI-suggested

Immediately update all Google Chrome installations to version 141.0.7390.54 or later to apply the official patch addressing CVE-2025-11207.
Implement strict web content filtering and URL reputation services to block access to potentially malicious or untrusted websites that could host crafted HTML pages exploiting this vulnerability.
Employ browser security policies such as Content Security Policy (CSP) to restrict the execution of untrusted scripts and reduce the attack surface.
Educate users about the risks of visiting unknown or suspicious websites and encourage cautious browsing behavior.
Monitor network traffic and browser logs for unusual storage access patterns or anomalies indicative of exploitation attempts.
For high-security environments, consider deploying browser isolation technologies or sandboxing to contain potential attacks.
Coordinate with IT asset management to ensure all endpoints are inventoried and updated promptly.
Stay informed through official Google security advisories for any follow-up patches or mitigation guidance.

Description

Side-channel information leakage in Storage in Google Chrome prior to 141.0.7390.54 allowed a remote attacker to perform arbitrary read/write via a crafted HTML page. (Chromium security severity: Medium)

Impact

For European organizations, this vulnerability poses a significant risk to the confidentiality and integrity of sensitive data accessed or stored via Google Chrome. Since Chrome is widely used across enterprises and public sectors in Europe, exploitation could lead to unauthorized disclosure of session cookies, authentication tokens, or other sensitive information stored in the browser, potentially enabling account takeover or lateral movement within networks. The arbitrary write capability further increases risk by allowing attackers to manipulate stored data, which could corrupt application states or facilitate persistent attacks. Although availability is not impacted, the breach of confidentiality and integrity can result in regulatory non-compliance, especially under GDPR, leading to legal and financial repercussions. Organizations with high reliance on web applications and cloud services accessed through Chrome are particularly vulnerable. The absence of known exploits in the wild reduces immediate risk but does not eliminate the threat, as attackers may develop exploits rapidly once details become public. The medium severity rating indicates that while the threat is not critical, it requires timely mitigation to prevent exploitation.

CWE-125Out-of-bounds Read (opens in a new tab)
Base weaknessCWE Top 25 (2025): #8
The product reads data past the end, or before the beginning, of the intended buffer.
Implementation · Input Validation
Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
Architecture and Design · Language Selection
Use a language that provides appropriate memory abstractions.
OWASP Cheat Sheets
XML Security (opens in a new tab)
Mass Assignment (opens in a new tab)
OWASP ASVS 4.0.3
V13.3.1 (opens in a new tab)
V5.1.4 (opens in a new tab)
V5.1.3 (opens in a new tab)
Attack patterns
Overread Buffers (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

Community reviews

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 13 Nov 2025, 22:44 UTC

WeaknessesCWE-125

Technical details

References

Community reviews

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