The icaltime_from_string function in libical 0.47 and 1.0 allows remote attackers to…
Priority LOW 38CWE-125Published · 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
- Will not fix Red Hat: no fix planned
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-125 and the CVSS impact.
Summary
The icaltime_from_string function in libical 0.47 and 1.0 allows remote attackers to cause a denial of service (out-of-bounds heap read) via a crafted string to the icalparser_parse_string function.
Why it matters now
EPSS 0.03069 87th percentileScored 2026-11-07
Fix Will not fix Red Hat: no fix planned
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 |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:libical_project:libical:0.47:*:*:*:*:*:*:* | 0.47 | Vulnerable | Libical Project |
| cpe:2.3:a:libical_project:libical:1.0.0:*:*:*:*:*:*:* | 1.0.0 | Vulnerable | Libical Project |
- cpe:2.3:a:libical_project:libical:0.47:*:*:*:*:*:*:* Versions 0.47 Vulnerable ·Libical Project
- cpe:2.3:a:libical_project:libical:1.0.0:*:*:*:*:*:*:* Versions 1.0.0 Vulnerable ·Libical Project
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. 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 planned: Will not fix |
Timeline
- 2026-10-02 Threatist record created from CVE-2016-5827
- 2026-10-03 Alias added: GHSA-r9rv-6pgm-3cxf
References
More Libical Project Libical vulnerabilities
- TI-2016-07805 libical allows remote attackers to cause a denial of service (use-after-free) and… CVSS 3.0CRITICAL 9.1
- TI-2016-05054 The parser_get_next_char function in libical 0.47 and 1.0 allows remote attackers to… CVSS 3.0HIGH 7.5
- TI-2016-05052 libical 1.0 allows remote attackers to cause a denial of service (use-after-free) via a crafted ics file. CVSS 3.0MEDIUM 5.5
- TI-2016-05053 The icalparser_parse_string function in libical 0.47 and 1.0 allows remote attackers to… CVSS 3.0MEDIUM 5.5
- TI-2016-05051 The icalproperty_new_clone function in libical 0.47 and 1.0 allows remote attackers to… CVSS 3.0MEDIUM 5.5
Sources
- CVE-2016-5827 · CVE Program
- CVE-2016-5827 · NVD
- FIRST EPSS
- GHSA-r9rv-6pgm-3cxf · GitHub Advisory Database · CC BY 4.0
- CVE-2016-5827 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences