Acrobat Reader: Access of Resource Using Incompatible Type
CVE-2024-45112 is a high-severity access of resource using incompatible type vulnerability in Acrobat Reader from Adobe, with a CVSS 3.1 base score of 7.8 out of 10. It can be exploited with local access to the system by an unauthenticated attacker, but only if a user takes part, for example by opening a link or file. Affected Acrobat Reader versions: 24.003.20054 and earlier; 20.005.30636 and earlier; 20.0 through 20.005.30635. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.52% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Check which version of Acrobat Reader you run against the affected versions below, and install the vendor's latest release.
- Read the advisory on helpx.adobe.com for workarounds and exact fixed builds.
- Because the attack needs a user to take part, warn users about unexpected links and files related to this product until it is patched.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Adobe | Acrobat Reader | 24.003.20054 and earlier; 20.005.30636 and earlier; 20.0 through 20.005.30635 | Not stated |
| Adobe | acrobat_dc | 24.003.20054 and earlier; 24.002.21005 and earlier | Not stated |
| Adobe | acrobat | 24.0 through 24.001.30159; 20.0 through 20.005.30655 | Not stated |
| Adobe | acrobat_reader_dc | 24.002.20991 and earlier; 20.0 through 24.002.21005; 20.0 through 24.003.20054 | Not stated |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- LocalThe attacker needs local access or must trick a user into running something.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- RequiredA user must take an action such as opening a file or link.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. Scored by CNA (adobe.com).
Official description
Acrobat Reader versions 24.002.21005, 24.001.30159, 20.005.30655, 24.003.20054 and earlier are affected by a Type Confusion vulnerability that could result in arbitrary code execution in the context of the current user. This issue occurs when a resource is accessed using a type that is not compatible with the actual object type, leading to a logic error that an attacker could exploit. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Access of Resource Using Incompatible Type
The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.
More Access of Resource Using Incompatible Type vulnerabilities (CWE-843)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Other vulnerabilities in Acrobat Reader
- 8.8 High severity
- 7.8 High severity
- 7.8 High severity
- 7.8 High severity
- 7.8 High severity
- 7.8 High severity
Recent Access of Resource Using Incompatible Type vulnerabilities
- 8.8 High severity
- 7.5 High severity
- 9.8 Critical severity
- 9.8 Critical severity
- 8.8 High severity
- 9.6 Critical severity
Google Chromium V8 Type Confusion Exploited
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