CVE-2016-5823
CVE-2016-5823 is a medium-severity vulnerability in Libical Project Libical with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-416.
Key facts
- Severity: Medium (CVSS 3.x base score 5.5)
- CVSS v2: 4.3
- EPSS exploit prediction: 1% (59th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-416
- Affected product: Libical Project Libical
- Published:
- Last modified:
Description
The icalproperty_new_clone function in libical 0.47 and 1.0 allows remote attackers to cause a denial of service (use-after-free) via a crafted ics file.
Frequently asked questions
- What is CVE-2016-5823?
- The icalproperty_new_clone function in libical 0.47 and 1.0 allows remote attackers to cause a denial of service (use-after-free) via a crafted ics file.
- How severe is CVE-2016-5823?
- CVE-2016-5823 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2016-5823 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2016-5823?
- CVE-2016-5823 primarily affects Libical Project Libical. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2016-5823?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2016-5823 published?
- CVE-2016-5823 was published on 2017-01-27 and last updated on 2026-06-17.
References
Affected products (2)
- cpe:2.3:a:libical_project:libical:0.47:*:*:*:*:*:*:*
- cpe:2.3:a:libical_project:libical:1.0:*:*:*:*:*:*:*
More vulnerabilities in Libical Project Libical
- CVE-2016-9584 — Critical (CVSS 9.1): libical allows remote attackers to cause a denial of service (use-after-free) and possibly read heap memory via a…
- CVE-2016-5827 — High (CVSS 7.5): The icaltime_from_string function in libical 0.47 and 1.0 allows remote attackers to cause a denial of service…
- CVE-2016-5826 — High (CVSS 7.5): The parser_get_next_char function in libical 0.47 and 1.0 allows remote attackers to cause a denial of service…
- CVE-2016-5825 — Medium (CVSS 5.5): The icalparser_parse_string function in libical 0.47 and 1.0 allows remote attackers to cause a denial of service…
- CVE-2016-5824 — Medium (CVSS 5.5): libical 1.0 allows remote attackers to cause a denial of service (use-after-free) via a crafted ics file.
All CVEs affecting Libical Project Libical →
Other CWE-416 (Use After Free) vulnerabilities
- CVE-2026-13782 — Critical (CVSS 10.0): Use after free in Browser in Google Chrome prior to 150.0.7871.47 allowed a remote attacker who had compromised the…
- CVE-2026-4725 — Critical (CVSS 10.0): Sandbox escape due to use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149…
- CVE-2026-4688 — Critical (CVSS 10.0): Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox…
- CVE-2025-24085 — Critical (CVSS 10.0): A use after free issue was addressed with improved memory management. This issue is fixed in iOS 18.3 and iPadOS 18.3,…
- CVE-2024-43102 — Critical (CVSS 10.0): Concurrent removals of certain anonymous shared memory mappings by using the UMTX_SHM_DESTROY sub-request of…
- CVE-2021-32495 — Critical (CVSS 10.0): Radare2 has a use-after-free vulnerability in pyc parser's get_none_object function. Attacker can read freed memory…