CVE-2017-18926

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

3.12% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 86.7% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Modified. 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

2020-11-06 17:48Z5 YR AGO

Last updated

2024-08-05 21:45Z2 YR AGO

Reserved

2020-11-06

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-787Out-of-bounds WriteBase
• CWE-122Heap-based Buffer OverflowVariant

Data version

5.1

Document digest

13d1357f5599a6bbcda44ccb9ded3d88654f6aa9f85c96c979dd1385b6832d0f

• www.openwall.comhttps://www.openwall.com/lists/oss-security/2017/06/07/1x_refsource_MISC
• github.comhttps://github.com/LibreOffice/core/blob/master/external/redland/raptor/0001-Calcualte-max-nspace-declarations-correctly-for-XML-.patch.1x_refsource_MISC
• lists.debian.org[debian-lts-announce] 20201107 [SECURITY] [DLA 2438-1] raptor2 security updatehttps://lists.debian.org/debian-lts-announce/2020/11/msg00012.htmlmailing-listx_refsource_MLIST
• www.debian.orgDSA-4785https://www.debian.org/security/2020/dsa-4785vendor-advisoryx_refsource_DEBIAN
• www.openwall.com[oss-security] 20201113 Buffer Overflow in raptor widely unfixed in Linux distroshttp://www.openwall.com/lists/oss-security/2020/11/13/1mailing-listx_refsource_MLIST
• www.openwall.com[oss-security] 20201113 Re: Buffer Overflow in raptor widely unfixed in Linux distroshttp://www.openwall.com/lists/oss-security/2020/11/13/2mailing-listx_refsource_MLIST
• www.openwall.com[oss-security] 20201114 Re: Buffer Overflow in raptor widely unfixed in Linux distroshttp://www.openwall.com/lists/oss-security/2020/11/14/2mailing-listx_refsource_MLIST
• www.openwall.com[oss-security] 20201116 Re: Buffer Overflow in raptor widely unfixed in Linux distroshttp://www.openwall.com/lists/oss-security/2020/11/16/3mailing-listx_refsource_MLIST
• www.openwall.com[oss-security] 20201116 Re: Buffer Overflow in raptor widely unfixed in Linux distroshttp://www.openwall.com/lists/oss-security/2020/11/16/2mailing-listx_refsource_MLIST
• lists.fedoraproject.orgFEDORA-2020-b15dd44972https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RD67AVORGQXORPWNYYUHCH6YPPT6CI4O/vendor-advisoryx_refsource_FEDORA
• lists.fedoraproject.orgFEDORA-2020-d6675a61f1https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RVHFYQDMVEBICIL4DBAGRRLPUR4QYWMV/vendor-advisoryx_refsource_FEDORA
• lists.fedoraproject.orgFEDORA-2020-3c1e69f1b1https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WDZRNM45VPTQF2BKRWG4YRCHJGQ2L7NS/vendor-advisoryx_refsource_FEDORA