Uncontrolled resource consumption in Flexera Software LLC libexif
Priority LOW 39CWE-400Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Deferred Red Hat: fix deferred
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-400.
Summary
An error when processing the EXIF_IFD_INTEROPERABILITY and EXIF_IFD_EXIF tags within libexif version 0.6.21 can be exploited to exhaust available CPU resources.
Why it matters now
EPSS 0.03798 90th percentileScored 2026-11-07
Fix Deferred Red Hat: fix deferred
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Flexera Software LLC | libexif | 0.6.21 | — | No fix listed | CNA |
- libexif VendorFlexera Software LLC Affected 0.6.21 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:libexif_project:libexif:0.6.21:*:*:*:*:*:*:* | 0.6.21 | Vulnerable | libexif project |
- cpe:2.3:a:libexif_project:libexif:0.6.21:*:*:*:*:*:*:* Versions 0.6.21 Vulnerable ·libexif project
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 5 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 7 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
Timeline
- 2026-10-02 Threatist record created from CVE-2018-20030
- 2026-10-03 Alias added: GHSA-9fxq-h6qr-qghc
- 2026-11-02 EPSS moved to the 90th–95th percentile
References
Advisory 4
More Flexera Software LLC vulnerabilities
- TI-2011-03652 Multiple directory traversal vulnerabilities in lmgrd in Flexera FlexNet Publisher 11.10… CVSS 2.0HIGH 10.0
- TI-2015-06818 Multiple buffer overflows in (1) lmgrd and (2) Vendor Daemon in Flexera FlexNet Publisher… CVSS 3.0CRITICAL 9.8
- TI-2019-15367 FlexNet Publisher 11.12.1 - Cross-Site Request Forgery (Add Local Admin) CVSS 4.0MEDIUM 5.1
- TI-2011-03651 Heap-based buffer overflow in lmadmin in Flexera FlexNet Publisher 11.10 (aka FlexNet… CVSS 2.0HIGH 10.0
- TI-2018-14211 Resource allocation without limits in Flexera Software LLC FlexNet Publisher CVSS 3.1CRITICAL 9.8
- TI-2017-04623 Out-of-bounds write in Flexera Software LLC GnuTLS libtasn1 CVSS 3.1HIGH 8.8
Sources
- CVE-2018-20030 · CVE Program
- CVE-2018-20030 · NVD
- FIRST EPSS
- GHSA-9fxq-h6qr-qghc · GitHub Advisory Database · CC BY 4.0
- CVE-2018-20030 · Red Hat security data · CC BY 4.0
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