How severe is CVE-2020-12845?

CVE-2020-12845 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2020-12845 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-12845?

CVE-2020-12845 affects Cherokee-project Cherokee. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-12845?

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-2020-12845 published?

CVE-2020-12845 was published on 2020-07-27 and last updated on 2026-06-17.

CVE-2020-12845

CVE-2020-12845 is a high-severity vulnerability in Cherokee-project Cherokee with a CVSS 3.x base score of 7.5. 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-476.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Cherokee-project Cherokee
Published: 2020-07-27
Last modified: 2026-06-17

Description

Cherokee 0.4.27 to 1.2.104 is affected by a denial of service due to a NULL pointer dereferences. A remote unauthenticated attacker can crash the server by sending an HTTP request to protected resources using a malformed Authorization header that is mishandled during a cherokee_buffer_add call within cherokee_validator_parse_basic or cherokee_validator_parse_digest.

Frequently asked questions

What is CVE-2020-12845?: Cherokee 0.4.27 to 1.2.104 is affected by a denial of service due to a NULL pointer dereferences. A remote unauthenticated attacker can crash the server by sending an HTTP request to protected resources using a malformed Authorization header that is mishandled during a cherokee_buffer_add call within cherokee_validator_parse_basic or cherokee_validator_parse_digest.
How severe is CVE-2020-12845?: CVE-2020-12845 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2020-12845 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-12845?: CVE-2020-12845 affects Cherokee-project Cherokee. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-12845?: 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-2020-12845 published?: CVE-2020-12845 was published on 2020-07-27 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:cherokee-project:cherokee:*:*:*:*:*:*:*:*

More vulnerabilities in Cherokee-project Cherokee

CVE-2019-20800 — Critical (CVSS 9.8): In Cherokee through 1.2.104, remote attackers can trigger an out-of-bounds write in cherokee_handler_cgi_add_env_pair…
CVE-2019-20798 — High (CVSS 8.4): An XSS issue was discovered in handler_server_info.c in Cherokee through 1.2.104. The requested URL is improperly…
CVE-2019-20799 — High (CVSS 7.5): In Cherokee through 1.2.104, multiple memory corruption errors may be used by a remote attacker to destabilize the work…
CVE-2014-4668 — Medium (CVSS 6.8): The cherokee_validator_ldap_check function in validator_ldap.c in Cherokee 1.2.103 and earlier, when LDAP is used, does…
CVE-2011-2191 — Medium (CVSS 6.8): Cross-site request forgery (CSRF) vulnerability in Cherokee-admin in Cherokee before 1.2.99 allows remote attackers to…
CVE-2009-4489 — Medium (CVSS 5.0): header.c in Cherokee before 0.99.32 writes data to a log file without sanitizing non-printable characters, which might…

All CVEs affecting Cherokee-project Cherokee →

Other CWE-476 (NULL Pointer Dereference) vulnerabilities

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CVE-2020-14500 — Critical (CVSS 10.0): Secomea GateManager all versions prior to 9.2c, An attacker can send a negative value and overwrite arbitrary data.
CVE-2010-2495 — Critical (CVSS 10.0): The pppol2tp_xmit function in drivers/net/pppol2tp.c in the L2TP implementation in the Linux kernel before 2.6.34 does…
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CVE-2026-31436 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: fix possible wrong descriptor…

Browse all CWE-476 (NULL Pointer Dereference) vulnerabilities →