How severe is CVE-2018-7262?

CVE-2018-7262 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-2018-7262 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-7262?

CVE-2018-7262 primarily affects Redhat Ceph. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-7262?

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-2018-7262 published?

CVE-2018-7262 was published on 2018-03-19 and last updated on 2026-06-17.

CVE-2018-7262

CVE-2018-7262 is a high-severity vulnerability in Redhat Ceph 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% (86th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Redhat Ceph
Published: 2018-03-19
Last modified: 2026-06-17

Description

In Ceph before 12.2.3 and 13.x through 13.0.1, the rgw_civetweb.cc RGWCivetWeb::init_env function in radosgw doesn't handle malformed HTTP headers properly, allowing for denial of service.

Frequently asked questions

What is CVE-2018-7262?: In Ceph before 12.2.3 and 13.x through 13.0.1, the rgw_civetweb.cc RGWCivetWeb::init_env function in radosgw doesn't handle malformed HTTP headers properly, allowing for denial of service.
How severe is CVE-2018-7262?: CVE-2018-7262 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-2018-7262 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (86th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-7262?: CVE-2018-7262 primarily affects Redhat Ceph. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-7262?: 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-2018-7262 published?: CVE-2018-7262 was published on 2018-03-19 and last updated on 2026-06-17.

References

Affected products (4)

cpe:2.3:a:redhat:ceph:*:*:*:*:*:*:*:*
cpe:2.3:a:redhat:ceph:13.0.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:ceph:13.0.1:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:27:*:*:*:*:*:*:*

More vulnerabilities in Redhat Ceph

CVE-2020-25660 — High (CVSS 8.8): A flaw was found in the Cephx authentication protocol in versions before 15.2.6 and before 14.2.14, where it does not…
CVE-2022-3650 — High (CVSS 7.8): A privilege escalation flaw was found in Ceph. Ceph-crash.service allows a local attacker to escalate privileges to…
CVE-2024-47866 — High (CVSS 7.5): Ceph is a distributed object, block, and file storage platform. In versions up to and including 19.2.3, using the…
CVE-2018-1128 — High (CVSS 7.5): It was found that cephx authentication protocol did not verify ceph clients correctly and was vulnerable to replay…
CVE-2020-27781 — High (CVSS 7.1): User credentials can be manipulated and stolen by Native CephFS consumers of OpenStack Manila, resulting in potential…
CVE-2021-3524 — Medium (CVSS 6.5): A flaw was found in the Red Hat Ceph Storage RadosGW (Ceph Object Gateway) in versions before 14.2.21. The…

All CVEs affecting Redhat Ceph →

Other CWE-476 (NULL Pointer Dereference) vulnerabilities

CVE-2022-36648 — Critical (CVSS 10.0): The hardware emulation in the of_dpa_cmd_add_l2_flood of rocker device model in QEMU, as used in 7.0.0 and earlier,…
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…
CVE-2026-46195 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: smb: client: validate dacloffset before building…
CVE-2026-31657 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: batman-adv: hold claim backbone gateways by…
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 →