CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCVE-2021-34798
High (7.5). EPSS 65% chance of exploitation in the next 30 days.
Malformed requests may cause the server to dereference a NULL pointer. This issue affects Apache HTTP Server 2.4.48 and earlier.
Severity
- EPSS
- 65% chance of exploitation in the next 30 days; higher than 99% of CVEs (scores of 2026-10-31)
- CWE
- CWE-476
- Published
- Modified
- Record from
- the NVD, synced
Affected
- apache:http_server
- broadcom:brocade_fabric_operating_system_firmware
- debian:debian_linux
- fedoraproject:fedora
- netapp:cloud_backup
- netapp:clustered_data_ontap
- netapp:storagegrid
- oracle:communications_cloud_native_core_network_function_cloud_native_environment
- oracle:enterprise_manager_base_platform
- oracle:http_server
- oracle:instantis_enterprisetrack
- oracle:peoplesoft_enterprise_peopletools
- oracle:zfs_storage_appliance_kit
- siemens:ruggedcom_nms
- siemens:sinec_nms
- siemens:sinema_remote_connect_server
- siemens:sinema_server
- tenable:tenable.sc
References
- http://httpd.apache.org/security/vulnerabilities_24.html
- https://cert-portal.siemens.com/productcert/pdf/ssa-685781.pdf
- https://kc.mcafee.com/corporate/index?page=content&id=SB10379
- https://lists.apache.org/thread.html/r3925e167d5eb1c75def3750c155d753064e1d34a143028bb32910432%40%3Cusers.httpd.apache.org%3E
- https://lists.apache.org/thread.html/r61fdbfc26ab170f4e6492ef3bd5197c20b862ce156e9d5a54d4b899c%40%3Cusers.httpd.apache.org%3E