CVE-2021-42195
CVE-2021-42195 is a high-severity vulnerability in Swftools 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-787.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- CVSS v2: 6.8
- EPSS exploit prediction: 1% (56th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-787
- Affected product: Swftools
- Published:
- Last modified:
Description
An issue was discovered in swftools through 20201222. A heap-buffer-overflow exists in the function handleEditText() located in swfdump.c. It allows an attacker to cause code Execution.
Frequently asked questions
- What is CVE-2021-42195?
- An issue was discovered in swftools through 20201222. A heap-buffer-overflow exists in the function handleEditText() located in swfdump.c. It allows an attacker to cause code Execution.
- How severe is CVE-2021-42195?
- CVE-2021-42195 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-2021-42195 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-42195?
- CVE-2021-42195 affects Swftools. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-42195?
- 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-2021-42195 published?
- CVE-2021-42195 was published on 2022-06-02 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:swftools:swftools:*:*:*:*:*:*:*:*
More vulnerabilities in Swftools
- CVE-2022-40009 — Critical (CVSS 9.8): SWFTools commit 772e55a was discovered to contain a heap-use-after-free via the function grow_unicode at /lib/ttf.c.
- CVE-2022-40008 — Critical (CVSS 9.8): SWFTools commit 772e55a was discovered to contain a heap-buffer overflow via the function readU8 at /lib/ttf.c.
- CVE-2010-1516 — Critical (CVSS 9.3): Multiple integer overflows in SWFTools 0.9.1 allow remote attackers to execute arbitrary code via (1) a crafted PNG…
- CVE-2024-26339 — Critical (CVSS 9.1): swftools v0.9.2 was discovered to contain a strcpy parameter overlap via /home/swftools/src/swfc+0x48318a.
- CVE-2017-11101 — High (CVSS 8.8): When SWFTools 0.9.2 processes a crafted file in swfcombine, it can lead to a NULL Pointer Dereference in the…
- CVE-2017-11100 — High (CVSS 8.8): When SWFTools 0.9.2 processes a crafted file in swfextract, it can lead to a NULL Pointer Dereference in the…
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