How severe is CVE-2020-13467?

CVE-2020-13467 has a CVSS 3.x base score of 4.6, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2020-13467 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-13467?

CVE-2020-13467 affects Cksic Cks32f103 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-13467?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-13467 published?

CVE-2020-13467 was published on 2020-08-31 and last updated on 2026-06-17.

CVE-2020-13467

CVE-2020-13467 is a medium-severity vulnerability in Cksic Cks32f103 Firmware with a CVSS 3.x base score of 4.6. 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-755.

Key facts

Severity: Medium (CVSS 3.x base score 4.6)
CVSS v2: 2.1
EPSS exploit prediction: 0% (21st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-755
Affected product: Cksic Cks32f103 Firmware
Published: 2020-08-31
Last modified: 2026-06-17

Description

The flash memory readout protection in China Key Systems & Integrated Circuit CKS32F103 devices allows physical attackers to extract firmware via the debug interface and exception handling.

Frequently asked questions

What is CVE-2020-13467?: The flash memory readout protection in China Key Systems & Integrated Circuit CKS32F103 devices allows physical attackers to extract firmware via the debug interface and exception handling.
How severe is CVE-2020-13467?: CVE-2020-13467 has a CVSS 3.x base score of 4.6, rated medium severity. It is exploitable over physical access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2020-13467 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-13467?: CVE-2020-13467 affects Cksic Cks32f103 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-13467?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-13467 published?: CVE-2020-13467 was published on 2020-08-31 and last updated on 2026-06-17.

References

https://www.usenix.org/system/files/woot20-paper-obermaier.pdf

Affected products (1)

cpe:2.3:o:cksic:cks32f103_firmware:-:*:*:*:*:*:*:*

More vulnerabilities in Cksic Cks32f103 Firmware

CVE-2020-13464 — Medium (CVSS 4.2): The flash memory readout protection in China Key Systems & Integrated Circuit CKS32F103 devices allows physical…

All CVEs affecting Cksic Cks32f103 Firmware →

Other CWE-755 (Improper Handling of Exceptional Conditions) vulnerabilities

CVE-2025-34193 — Critical (CVSS 9.8): Vasion Print (formerly PrinterLogic) Virtual Appliance Host versions prior to 25.1.102 and Application versions prior…
CVE-2025-10156 — Critical (CVSS 9.8): An Improper Handling of Exceptional Conditions vulnerability in the ZIP archive scanning component of mmaitre314…
CVE-2021-42142 — Critical (CVSS 9.8): An issue was discovered in Contiki-NG tinyDTLS through master branch 53a0d97. DTLS servers mishandle the early use of a…
CVE-2021-42141 — Critical (CVSS 9.8): An issue was discovered in Contiki-NG tinyDTLS through 2018-08-30. One incorrect handshake could complete with…
CVE-2023-38406 — Critical (CVSS 9.8): bgpd/bgp_flowspec.c in FRRouting (FRR) before 8.4.3 mishandles an nlri length of zero, aka a "flowspec overflow."
CVE-2022-23121 — Critical (CVSS 9.8): This vulnerability allows remote attackers to execute arbitrary code on affected installations of Netatalk.…

Browse all CWE-755 (Improper Handling of Exceptional Conditions) vulnerabilities →