Is CVE-2021-26837 actively exploited?

No active exploitation of CVE-2021-26837 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-26837 be exploited remotely?

Yes. CVE-2021-26837 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-26837?

CVE-2021-26837 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2021-26837

CRITICAL

CVE-2021-26837

CWE-89Published: September 19, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

SQL Injection vulnerability in SearchTextBox parameter in Fortra (Formerly HelpSystems) DeliverNow before version 1.2.18, allows attackers to execute arbitrary code, escalate privileges, and gain sensitive information.

NVD Source

Risk Analysis

This is a critical SQL injection vulnerability in the SearchTextBox parameter of Fortra DeliverNow that allows for remote code execution and privilege escalation. Its CVSS score of 9.8 reflects the high severity of potential unauthorized system access.

No public exploit is known, and it is not in the CISA KEV catalog.

Recommended Action

Administrators should upgrade Fortra DeliverNow to version 1.2.18 or later.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2021-26837 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-89): SQL injection vulnerabilities allow attackers to manipulate database queries, potentially exposing or modifying sensitive data.