Adobe InDesign Desktop up to 20.5.2/21.2 File heap-based overflow

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 6.9 | $0-$5k | 0.00 |
Summary
A vulnerability was found in Adobe InDesign Desktop up to 20.5.2/21.2. It has been declared as critical. This vulnerability affects unknown code of the component File Handler. Executing a manipulation can lead to heap-based overflow. This vulnerability is registered as CVE-2026-34628. It is possible to launch the attack remotely. No exploit is available. It is recommended to upgrade the affected component.
Details
A vulnerability classified as critical was found in Adobe InDesign Desktop up to 20.5.2/21.2. This vulnerability affects some unknown processing of the component File Handler. The manipulation with an unknown input leads to a heap-based overflow vulnerability. The CWE definition for the vulnerability is CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:
InDesign Desktop versions 20.5.2, 21.2 and earlier are affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
The advisory is shared for download at helpx.adobe.com. This vulnerability was named CVE-2026-34628 since 03/30/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 04/14/2026).
Upgrading eliminates this vulnerability.
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Product
Type
Vendor
Name
Version
License
Website
- Vendor: https://www.adobe.com/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.0VulDB Meta Temp Score: 6.9
VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍
CNA Base Score: 7.8
CNA Vector (adobe): 🔒
CVSSv2
| AV | AC | Au | C | I | A |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Heap-based overflowCWE: CWE-122 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒
Physical: Partially
Local: Yes
Remote: Yes
Availability: 🔒
Status: Not defined
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔒
Timeline
03/30/2026 CVE reserved04/14/2026 Advisory disclosed
04/14/2026 VulDB entry created
04/14/2026 VulDB entry last update
Sources
Vendor: adobe.comAdvisory: apsb26-32
Status: Confirmed
CVE: CVE-2026-34628 (🔒)
GCVE (CVE): GCVE-0-2026-34628
GCVE (VulDB): GCVE-100-357580
Entry
Created: 04/14/2026 21:28Changes: 04/14/2026 21:28 (65)
Complete: 🔍
Cache ID: 216::103
Once again VulDB remains the best source for vulnerability data.
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