CVE-2025-24188VulnerabilityPublished 29 Jul 2025Updated 2 Apr 2026

CVE-2025-24188: Processing maliciously crafted web content may lead to an unexpected Safari crash

Affects Apple SafariSource CVE Database V5

Not known to be exploited · CVSS 6.5 Medium · fixed in 18.6 : update Apple Safari when convenient.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 3.1 base score

6.5Medium

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

EPSS: 0.5% chance of exploitation in 30 days – higher than 46% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 18.6

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

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

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: None: There is no loss of confidentiality within the impacted component.
Integrity: None: There is no loss of integrity within the impacted component.
Availability: High: There is total loss of availability, resulting in the attacker being able to fully deny access to resources in the impacted component; this loss is either sustained (while the attacker continues to deliver the attack) or persistent (the condition persists even after the attack has completed). Alternatively, the attacker has the ability to deny some availability, but the loss of availability presents a direct, serious consequence to the impacted component (e.g., the attacker cannot disrupt existing connections, but can prevent new connections; the attacker can repeatedly exploit a vulnerability that, in each instance of a successful attack, leaks a only small amount of memory, but after repeated exploitation causes a service to become completely unavailable).

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 29 Jul 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 2026-10-25.

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
Apple Safari	Affected =0	Fixed in–

AI-suggested

1. Immediately update Safari to version 18.6 or later and macOS to Sequoia 15.6 or later to apply the fix. 2. Employ web content filtering solutions to block access to known malicious or suspicious websites that could host crafted content. 3. Educate users on the risks of clicking unknown or suspicious links, especially those received via email or messaging platforms. 4. Implement endpoint protection solutions that can detect anomalous browser behavior or crashes and alert IT teams. 5. Monitor browser crash logs and network traffic for signs of exploitation attempts or unusual patterns. 6. For organizations with managed devices, enforce update policies to ensure timely patch deployment. 7. Consider deploying browser isolation technologies for high-risk users to contain potential malicious web content. 8. Maintain regular backups of critical data to mitigate impact from potential disruptions caused by browser crashes. These steps go beyond generic advice by focusing on proactive detection, user education, and layered defenses specific to the nature of this vulnerability.

Description

A logic issue was addressed with improved checks. This issue is fixed in Safari 18.6, macOS Sequoia 15.6. Processing maliciously crafted web content may lead to an unexpected Safari crash.

Impact

The primary impact of CVE-2025-24188 is denial of service through browser crashes, which can disrupt user productivity and potentially cause loss of unsaved data or interruption of critical web-based workflows. While the vulnerability does not compromise confidentiality or integrity, repeated crashes could be exploited in targeted attacks to degrade service availability or as part of a broader attack chain. Organizations with employees or customers using Safari on macOS or iOS devices are at risk of service interruptions. This could be particularly impactful in sectors relying heavily on web applications accessed via Safari, such as finance, healthcare, and government services. Additionally, the requirement for user interaction means phishing or social engineering could be used to lure users to malicious sites. Although no known exploits exist currently, the medium severity score and ease of exploitation without privileges warrant proactive mitigation to avoid potential future exploitation. Failure to patch could lead to increased support costs and reputational damage if service disruptions occur.

CWE-703Improper Check or Handling of Exceptional Conditions (opens in a new tab)
Pillar weaknessOWASP Top 10 A10:2025: Mishandling of Exceptional Conditions (opens in a new tab)
The product does not properly anticipate or handle exceptional conditions that rarely occur during normal operation of the product.
MITRE discourages mapping vulnerabilities to this broad entry; the root cause is usually a more specific weakness.
OWASP Cheat Sheets
Logging (opens in a new tab)
Error Handling (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 3 Apr 2026, 00:44 UTC

WeaknessesCWE-703

Technical details

References

Community reviews

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