Security readout for executives and security teams
Plain-English summary
This vulnerability affects IrfanView B3D PlugIns before version 4.56. It is a memory corruption flaw that could let an attacker compromise confidentiality, integrity, and availability according to the published CVSS rating. Business urgency depends on whether IrfanView and the B3D plugin are installed on managed endpoints.
Executive priority
Prioritize remediation for endpoints where IrfanView and B3D plugins are present, especially user workstations that process external files. If the plugin is absent, business exposure is likely limited.
Technical view
CVE-2020-13880 is a CWE-787 heap-based out-of-bounds write in B3d.dll at offset +1cbf. The source names IrfanView B3D PlugIns before 4.56 and assigns CVSS 3.1 score 9.8 with high impact to confidentiality, integrity, and availability.
Likely exposure
Exposure is most likely on Windows endpoints using IrfanView with the B3D PlugIns installed below version 4.56. The provided affected-product metadata is incomplete, so asset inventory should verify actual installations and plugin versions rather than relying only on CPE matching.
Exploitation context
The bundle does not cite CISA KEV listing or active in-the-wild exploitation. A public gist is referenced, indicating public technical detail may exist, but the provided evidence is not enough to state active exploitation.
Researcher notes
The CVE record has sparse affected-product metadata despite naming IrfanView B3D PlugIns before 4.56. Treat CPE-based detection as unreliable and validate by installed software and plugin DLL version. Do not assume exploitation without additional evidence.
Mitigation direction
- Inventory IrfanView installations and installed B3D plugin versions.
- Update B3D PlugIns to version 4.56 or later where applicable.
- Remove or disable the B3D plugin if it is not required.
- Limit handling of untrusted B3D content until remediation is confirmed.
- Check IrfanView or plugin vendor guidance for supported update paths.
Validation and detection
- Confirm whether IrfanView is installed on managed endpoints.
- Check B3d.dll or B3D PlugIns version on systems with IrfanView.
- Verify vulnerable versions below 4.56 are updated, removed, or disabled.
- Review endpoint software inventory for unmanaged IrfanView plugin deployments.
- Track remediation evidence in vulnerability management records.
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-787: 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-2020-13880 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
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://gist.github.com/oicu0619/2de8f91ddc6b06b516475d5d67d7efbaCVE reference
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 Write
Out-of-bounds Write represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.