CVE-2021-27799
7.5 · HIGHOverview
CVE-2021-27799 is a high-severity vulnerability affecting zint barcode_generator. It was published on February 26, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
ean_leading_zeroes in backend/upcean.c in Zint Barcode Generator 2.9.1 has a stack-based buffer overflow that is reachable from the C API through an application that includes the Zint Barcode Generator library code.
Remediation
Check the references section for vendor advisories and patches from zint. Update barcode_generator to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
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References
Frequently Asked Questions
What is CVE-2021-27799?
CVE-2021-27799 is a high-severity vulnerability affecting zint barcode_generator. It was published on February 26, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).
How severe is CVE-2021-27799?
This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2021-27799?
Check the references section for vendor advisories and patches from zint. Update barcode_generator to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-27799?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-27799 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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