CVE-2021-43798

Exploitation

Exploited in the wild. Listed in the CISA Known Exploited Vulnerabilities catalog on 2025-10-09. Federal remediation due 2025-10-30.

SSVC decision

• ExploitationactiveCISA reports credible evidence of active exploitation.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

88.50% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 99.7% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2021-12-07 18:25Z4 YR AGO

Last updated

2025-10-21 23:25Z1 YR AGO

Reserved

2021-11-16

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

High (CVSS 7.5)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weaknesses

• CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')Base

Data version

5.1

Document digest

ba4b2345322168cf667200ada54511a1841904b2ef1d89c4fa9cdaceb6b3bda4

• github.comhttps://github.com/grafana/grafana/security/advisories/GHSA-8pjx-jj86-j47px_refsource_CONFIRM
• github.comhttps://github.com/grafana/grafana/commit/c798c0e958d15d9cc7f27c72113d572fa58545cex_refsource_MISC
• packetstormsecurity.comhttp://packetstormsecurity.com/files/165198/Grafana-Arbitrary-File-Reading.htmlx_refsource_MISC
• grafana.comhttps://grafana.com/blog/2021/12/08/an-update-on-0day-cve-2021-43798-grafana-directory-traversal/x_refsource_CONFIRM
• packetstormsecurity.comhttp://packetstormsecurity.com/files/165221/Grafana-8.3.0-Directory-Traversal-Arbitrary-File-Read.htmlx_refsource_MISC
• www.openwall.com[oss-security] 20211209 CVE-2021-43798 Grafana directory traversalhttp://www.openwall.com/lists/oss-security/2021/12/09/2mailing-listx_refsource_MLIST
• www.openwall.com[oss-security] 20211210 CVE-2021-43813 and CVE-2021-43815 - Grafana directory traversal for some .md and .csv fileshttp://www.openwall.com/lists/oss-security/2021/12/10/4mailing-listx_refsource_MLIST
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20211229-0004/x_refsource_CONFIRM
• www.cisa.govhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-43798government-resource