CVE-2021-36218
CVE-2021-36218 is a high-severity vulnerability in Skale Sgxwallet with a CVSS 3.x base score of 7.5. 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-787.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- CVSS v2: 5.0
- EPSS exploit prediction: 2% (72nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-787
- Affected product: Skale Sgxwallet
- Published:
- Last modified:
Description
An issue was discovered in SKALE sgxwallet 1.58.3. sgx_disp_ippsAES_GCMEncrypt allows an out-of-bounds write, resulting in a segfault and compromised enclave. This issue describes a buffer overflow, which was resolved prior to v1.77.0 and not reproducible in latest sgxwallet v1.77.0
Frequently asked questions
- What is CVE-2021-36218?
- An issue was discovered in SKALE sgxwallet 1.58.3. sgx_disp_ippsAES_GCMEncrypt allows an out-of-bounds write, resulting in a segfault and compromised enclave. This issue describes a buffer overflow, which was resolved prior to v1.77.0 and not reproducible in latest sgxwallet v1.77.0
- How severe is CVE-2021-36218?
- CVE-2021-36218 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2021-36218 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-2021-36218?
- CVE-2021-36218 affects Skale Sgxwallet. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-36218?
- 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-2021-36218 published?
- CVE-2021-36218 was published on 2021-09-27 and last updated on 2026-06-17.
References
- https://github.com/skalenetwork/sgxwallet/commit/77425c862ad20cd270d42c54f3d63e1eb4e02195
- https://github.com/skalenetwork/sgxwallet/releases
Affected products (1)
- cpe:2.3:a:skale:sgxwallet:1.58.3:*:*:*:*:*:*:*
More vulnerabilities in Skale Sgxwallet
- CVE-2021-36219 — Critical (CVSS 9.8): An issue was discovered in SKALE sgxwallet 1.58.3. The provided input for ECALL 14 triggers a branch in…
- CVE-2023-36199 — High (CVSS 7.5): An issue in skalenetwork sgxwallet v.1.9.0 and below allows an attacker to cause a denial of service via the…
- CVE-2023-36198 — High (CVSS 7.5): Buffer Overflow vulnerability in skalenetwork sgxwallet v.1.9.0 allows an attacker to cause a denial of service via the…
All CVEs affecting Skale Sgxwallet →
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