Vulnerability in Arm Cortex-A32
CVE-2020-13844
Arm Armv8-A core implementations utilizing speculative execution past unconditional changes in control flow may allow unauthorized disclosure of information to an attacker with local user access via a side-channel analysis, aka "straight-line speculation."
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.005 (39.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 39.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: -0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- developer.arm.com/support/arm-security-updates/speculative-processor-vulnerabil… (Vendor Advisory)
- developer.arm.com/support/arm-security-updates/speculative-processor-vulnerabil… (Vendor Advisory)
- developer.arm.com/support/arm-security-updates/speculative-processor-vulnerabil… (Vendor Advisory)
- gcc.gnu.org/pipermail/gcc-patches/2020-June/547520.html (Patch, Third Party Advisory)
- lists.llvm.org/pipermail/llvm-dev/2020-June/142109.html (Mailing List, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-10/msg00040.html (vendor-advisory, Mailing List, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-10/msg00039.html (vendor-advisory, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-13844?
- CVE-2020-13844 is a medium-severity vulnerability in Arm Cortex-A32, classified under Observable Discrepancy. CVSS score: 5.5/10. Published 2020-06-08.
- How severe is CVE-2020-13844?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2020-13844 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.