Security readout for executives and security teams
Plain-English summary
CVE-2021-44696 is a low-severity Adobe Prelude flaw triggered when a user opens a malicious JPEG file. It can disclose small amounts of sensitive memory and may help bypass protections such as ASLR, but it requires user interaction and does not provide code execution by itself.
Executive priority
Treat this as routine patch hygiene, not an emergency. The business risk is limited, but affected creative workstations should be remediated because the flaw can aid broader exploitation chains.
Technical view
Adobe Prelude 22.1.1 and earlier have a CWE-125 out-of-bounds read in JPEG file parsing. The CVSS 3.1 score is 3.3 with local attack vector, no privileges required, required user interaction, low confidentiality impact, and no integrity or availability impact.
Likely exposure
Exposure is most likely on endpoints running Adobe Prelude 22.1.1 or earlier, especially where users open JPEG files received from external or untrusted sources.
Exploitation context
The provided sources do not show active exploitation, and the CVE is not listed as KEV. Exploitation requires convincing a victim to open a malicious JPEG in the affected application.
Researcher notes
Evidence supports an out-of-bounds read information disclosure issue in JPEG parsing. Sources do not provide exploit details, observed exploitation, or a specific fix version in the supplied bundle beyond the Adobe advisory reference.
Mitigation direction
- Check Adobe APSB21-114 for the vendor-recommended fixed Prelude release.
- Update or remove affected Adobe Prelude installations where present.
- Limit opening JPEG files from untrusted sources in Prelude until remediated.
- Prioritize media-production endpoints that process externally supplied image files.
Validation and detection
- Inventory endpoints for Adobe Prelude installations and versions.
- Flag Prelude 22.1.1 and earlier as affected.
- Confirm remediation against Adobe APSB21-114 guidance.
- Review workflows where users open externally supplied JPEG files in Prelude.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-125: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2021-44696 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Low
- CVSS
- 3.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N1.81.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
3.3LowVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://helpx.adobe.com/security/products/prelude/apsb21-114.htmlCVE reference · vendor-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Out-of-bounds Read
Out-of-bounds Read represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.