Security readout for executives and security teams
Plain-English summary
This flaw affects Adobe Bridge 11.0.2 and earlier. A malicious file can trigger memory corruption when opened, letting an attacker run code as the logged-in user. It requires user interaction, so phishing or file-sharing workflows are the main concern.
Executive priority
Treat as a high-priority workstation patching issue, not an internet-facing emergency. Prioritize creative, marketing, and media teams that routinely open third-party files.
Technical view
CVE-2021-28624 is a heap-based buffer overflow in Adobe Bridge SGI file parsing. CVSS 3.1 is 7.8: local attack vector, low complexity, no privileges required, user interaction required, unchanged scope, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is likely limited to endpoints running Adobe Bridge 11.0.2 or earlier, especially users who receive or open externally supplied media files. Servers are not indicated by the source bundle.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation. Exploitation requires a victim to open a malicious file, after which code could run in the current user's context.
Researcher notes
Evidence is sufficient for affected product, vulnerability class, impact, and interaction requirement. The bundle does not provide exploit details, observed exploitation, or exact fixed version text, so remediation should be tied to Adobe's advisory.
Mitigation direction
- Identify endpoints running Adobe Bridge 11.0.2 or earlier.
- Use Adobe APSB21-53 to install the appropriate Bridge security update.
- Restrict opening untrusted SGI or media files until patched.
- Prioritize users handling externally supplied design or media assets.
Validation and detection
- Inventory installed Adobe Bridge versions across managed endpoints.
- Confirm no systems remain on Adobe Bridge 11.0.2 or earlier.
- Review endpoint telemetry for Bridge opening unexpected SGI files.
- Verify patch status against Adobe APSB21-53 guidance.
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
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CWE-122: Exact CWE lookup
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Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-28624 mapping review
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Open ATT&CK lookup- Severity
- High
- CVSS
- 7.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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:H/I:H/A:H1.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://helpx.adobe.com/security/products/bridge/apsb21-53.htmlCVE reference · x_refsource_MISC
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.
Heap-based Buffer Overflow
Heap-based Buffer Overflow represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.