CVE-2021-29096
CVE-2021-29096 is a high-severity vulnerability in Esri Arcgis Engine with a CVSS 3.x base score of 7.8. 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: High (CVSS 3.x base score 7.8)
- CVSS v2: 6.8
- EPSS exploit prediction: 2% (72nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-416
- Affected product: Esri Arcgis Engine
- Published:
- Last modified:
Description
A use-after-free vulnerability when parsing a specially crafted file in Esri ArcReader, ArcGIS Desktop, ArcGIS Engine 10.8.1 (and earlier) and ArcGIS Pro 2.7 (and earlier) allows an unauthenticated attacker to achieve arbitrary code execution in the context of the current user.
Frequently asked questions
- What is CVE-2021-29096?
- A use-after-free vulnerability when parsing a specially crafted file in Esri ArcReader, ArcGIS Desktop, ArcGIS Engine 10.8.1 (and earlier) and ArcGIS Pro 2.7 (and earlier) allows an unauthenticated attacker to achieve arbitrary code execution in the context of the current user.
- How severe is CVE-2021-29096?
- CVE-2021-29096 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2021-29096 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-29096?
- CVE-2021-29096 primarily affects Esri Arcgis Engine. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2021-29096?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2021-29096 published?
- CVE-2021-29096 was published on 2021-03-25 and last updated on 2026-06-17.
References
- https://www.esri.com/arcgis-blog/products/arcgis/administration/security-advisory-general-raster/
- https://www.zerodayinitiative.com/advisories/ZDI-21-370/
Affected products (4)
- cpe:2.3:a:esri:arcgis_engine:*:*:*:*:*:*:*:*
- cpe:2.3:a:esri:arcgis_pro:*:*:*:*:*:*:*:*
- cpe:2.3:a:esri:arcmap:*:*:*:*:*:*:*:*
- cpe:2.3:a:esri:arcreader:*:*:*:*:*:*:*:*
More vulnerabilities in Esri Arcgis Engine
- CVE-2021-29098 — High (CVSS 7.8): Multiple uninitialized pointer vulnerabilities when parsing a specially crafted file in Esri ArcReader, ArcGIS Desktop,…
- CVE-2021-29097 — High (CVSS 7.8): Multiple buffer overflow vulnerabilities when parsing a specially crafted file in Esri ArcReader, ArcGIS Desktop,…
All CVEs affecting Esri Arcgis Engine →
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- 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…