CVE-2018-11693
CVE-2018-11693 is a high-severity vulnerability in Sass-lang Libsass with a CVSS 3.x base score of 8.1. 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-125.
Key facts
- Severity: High (CVSS 3.x base score 8.1)
- CVSS v2: 5.8
- EPSS exploit prediction: 1% (69th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-125
- Affected product: Sass-lang Libsass
- Published:
- Last modified:
Description
An issue was discovered in LibSass through 3.5.4. An out-of-bounds read of a memory region was found in the function Sass::Prelexer::skip_over_scopes which could be leveraged by an attacker to disclose information or manipulated to read from unmapped memory causing a denial of service.
Frequently asked questions
- What is CVE-2018-11693?
- An issue was discovered in LibSass through 3.5.4. An out-of-bounds read of a memory region was found in the function Sass::Prelexer::skip_over_scopes which could be leveraged by an attacker to disclose information or manipulated to read from unmapped memory causing a denial of service.
- How severe is CVE-2018-11693?
- CVE-2018-11693 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability high.
- Is CVE-2018-11693 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2018-11693?
- CVE-2018-11693 affects Sass-lang Libsass. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2018-11693?
- 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-2018-11693 published?
- CVE-2018-11693 was published on 2018-06-04 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:sass-lang:libsass:*:*:*:*:*:*:*:*
More vulnerabilities in Sass-lang Libsass
- CVE-2018-11499 — Critical (CVSS 9.8): A use-after-free vulnerability exists in handle_error() in sass_context.cpp in LibSass 3.4.x and 3.5.x through 3.5.4…
- CVE-2022-26592 — High (CVSS 8.8): Stack Overflow vulnerability in libsass 3.6.5 via the CompoundSelector::has_real_parent_ref function.
- CVE-2018-19827 — High (CVSS 8.8): In LibSass 3.5.5, a use-after-free vulnerability exists in the SharedPtr class in SharedPtr.cpp (or SharedPtr.hpp) that…
- CVE-2018-11696 — High (CVSS 8.8): An issue was discovered in LibSass through 3.5.4. A NULL pointer dereference was found in the function…
- CVE-2018-11695 — High (CVSS 8.8): An issue was discovered in LibSass <3.5.3. A NULL pointer dereference was found in the function Sass::Expand::operator…
- CVE-2018-11694 — High (CVSS 8.8): An issue was discovered in LibSass through 3.5.4. A NULL pointer dereference was found in the function…
All CVEs affecting Sass-lang Libsass →
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