Common Weakness Enumeration

CWE-835

Allowed

Loop with Unreachable Exit Condition ('Infinite Loop')

Abstraction: Base · Status: Incomplete

The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.

1255 vulnerabilities reference this CWE, most recent first.

CVE-2026-15163 (GCVE-0-2026-15163)

Vulnerability from cvelistv5 – Published: 2026-07-08 20:50 – Updated: 2026-07-09 13:49
VLAI
Title
Loop with Unreachable Exit Condition ('Infinite Loop') in Wireshark
Summary
Multiple protocol dissector infinite loops in Wireshark 4.6.0 to 4.6.6 and 4.4.0 to 4.4.16 allow denial of service
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-09 13:49 UTC
CWE
  • CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
GitLab CNA under the mitre root
CNA scorecard C 75/100 over 288 records in the last 180 days details
Impacted products
Vendor Product Version
Wireshark Foundation Wireshark Affected: 4.6.0 , < 4.6.7 (semver)
Affected: 4.4.0 , < 4.4.17 (semver)
Create a notification for this product.
Show details on NVD website

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CVE-2026-14258 (GCVE-0-2026-14258)

Vulnerability from cvelistv5 – Published: 2026-07-01 09:24 – Updated: 2026-08-12 15:49
VLAI
Title
Dhcpcd: dhcpcd infinite loop and out-of-bounds read via zero-length ipv6 nd option in router advertisement handling
Summary
A flaw was found in dhcpcd's IPv6 Neighbor Discovery Router Advertisement processing. A specially crafted IPv6 Router Advertisement containing a zero-length Neighbor Discovery option can bypass validation during packet storage and later be reparsed without adequate validation, causing the parser to enter a non-advancing loop. Successful exploitation may result in excessive CPU consumption, leading to a denial of service.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-01 12:20 UTC
CWE
  • CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
redhat CNA under the redhat root
CNA scorecard B 81/100 over 976 records in the last 180 days details
Impacted products
Vendor Product Version
Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:10.0.6-11.el10_2 , < * (rpm)
    cpe:/o:redhat:enterprise_linux:10.2
Create a notification for this product.
Date Public
2024-12-01 00:00
Show details on NVD website

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CVE-2026-13401 (GCVE-0-2026-13401)

Vulnerability from cvelistv5 – Published: 2026-07-16 16:14 – Updated: 2026-07-17 12:51
VLAI
Title
XML::Bare versions through 0.53 for Perl will hang in an infinite loop when parsing malformed attributes
Summary
XML::Bare versions through 0.53 for Perl will hang in an infinite loop when parsing malformed attributes. The parserc_parse function never advances the attribute-parse state cursor on certain malformed attribute forms, looping forever. Nameless attributes such as "<a ='c'>" or unbalanced quotes "<a b='''''''c'>" can trigger this condition.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-17 12:51 UTC
CWE
  • CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
CPANSec CNA under the redhat root
CNA scorecard C 64/100 over 266 records in the last 180 days details
Impacted products
Vendor Product Version
CODECHILD XML::Bare Affected: 0 , ≤ 0.53 (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2026-13397 (GCVE-0-2026-13397)

Vulnerability from cvelistv5 – Published: 2026-07-16 16:14 – Updated: 2026-07-17 13:30
VLAI
Title
HTML::Bare versions through 0.04 for Perl will hang in an infinite loop when parsing malformed attributes
Summary
HTML::Bare versions through 0.04 for Perl will hang in an infinite loop when parsing malformed attributes. The parserc_parse function never advances the attribute-parse state cursor on certain malformed attribute forms, looping forever. Nameless attributes such as "<a ='c'>" or unbalanced quotes "<a b='''''''c'>" can trigger this condition. Note that the latest version available on CPAN is version 0.02. Newer versions are available on the git repository.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-17 13:29 UTC
CWE
  • CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
CPANSec CNA under the redhat root
CNA scorecard C 64/100 over 266 records in the last 180 days details
Impacted products
Vendor Product Version
CODECHILD HTML::Bare Affected: 0 , ≤ 0.04 (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2026-13002 (GCVE-0-2026-13002)

Vulnerability from cvelistv5 – Published: 2026-08-14 15:02 – Updated: 2026-08-31 17:38
VLAI
Title
Dnsmasq: infinite loop dos in dnssec nsec/nsec3 type bitmap parsing
Summary
A flow has been identified into dnssec.c library, causing an infinite loop to dnsmasq service. An attacker who controls any DNSSEC-signed zone can hang the dnsmasq process with a single crafted response, killing all DNS resolution for its clients.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-14 16:08 UTC
CWE
  • CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
redhat CNA under the redhat root
CNA scorecard B 81/100 over 976 records in the last 180 days details
References
URL Tags
https://access.redhat.com/security/cve/CVE-2026-13002 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2486360 issue-trackingx_refsource_REDHAT
Date Public
2026-06-08 12:00
Show details on NVD website

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CVE-2026-12629 (GCVE-0-2026-12629)

Vulnerability from cvelistv5 – Published: 2026-08-17 16:18 – Updated: 2026-08-17 18:27
VLAI
Title
PL011 UART error interrupts never cleared, enabling an external-peer interrupt-storm denial of service
Summary
The ARM PL011 UART driver in drivers/serial/uart_pl011.c fails to acknowledge receive error interrupts. On the PL011, the framing, parity, break, and overrun error interrupts (PL011_IMSC_ERROR_MASK) are cleared only by writing the interrupt-clear register UARTICR; reading the data register clears the RX interrupt and the per-byte RSR status but not the error interrupt status in MIS. The interrupt service routine pl011_isr() acknowledged only the CTS modem-status interrupt and never wrote icr for the error bits, so an asserted error interrupt remains pending after the ISR returns. When an application enables error-interrupt reporting via the public uart_irq_err_enable() API, an attacker who controls the serial peer can deterministically assert these error bits by injecting line errors on the RX line — a baud/stop-bit mismatch or mid-character break (framing/break error), a flipped parity bit (parity error), or FIFO flooding (overrun error). Because the error interrupt is never cleared, the interrupt line stays asserted and the CPU re-enters pl011_isr() immediately and indefinitely, producing an interrupt-storm livelock from which the core makes no forward progress. The impact is an availability-only denial of service (permanent hang), reachable from an external or removable UART peer. Exploitation is gated by configuration: the error interrupt is off by default and no in-tree subsystem enables it, so only applications that explicitly call uart_irq_err_enable() on a PL011-based, interrupt-driven port are affected. The fix makes pl011_isr() acknowledge the pending error bits via uart->icr, breaking the loop, and additionally clears the latched RSR status in pl011_err_check().
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-17 18:26 UTC
CWE
Assigner
zephyr CNA under the mitre root
CNA scorecard B 77/100 over 155 records in the last 180 days details
Impacted products
Vendor Product Version
zephyrproject zephyr Affected: 1.14.0 , < 4.4.2 (semver)
Create a notification for this product.
Show details on NVD website

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CVE-2026-12236 (GCVE-0-2026-12236)

Vulnerability from cvelistv5 – Published: 2026-08-13 17:19 – Updated: 2026-08-13 17:58
VLAI
Title
Infinite loop (DoS) in Bluetooth GATT client parsing of Read-By-Type responses with zero data length
Summary
The Bluetooth host GATT client function parse_read_std_char_desc() in subsys/bluetooth/host/gatt.c parses an ATT Read By Type Response received from a remote GATT server during BT_GATT_DISCOVER_STD_CHAR_DESC discovery. The per-entry stride rsp->len is taken directly from the peer's PDU, and the parse loop both tests its exit condition (length >= rsp->len) and advances (length -= rsp->len, pdu += rsp->len) using that value. The minimum value of rsp->len was never validated before the loop. A malicious or malfunctioning peer can reply with rsp->len = 0. Because length is unsigned and never decreases, the loop condition stays true forever and the read pointer never advances; as long as the body is at least a few bytes with a non-zero handle and a matching descriptor UUID, the host repeatedly re-parses the same bytes and invokes the discovery callback, never terminating. This hangs the Bluetooth host processing thread (CWE-835, loop with unreachable exit condition). The condition is reachable by any connected peer once the local device initiates standard-descriptor-value discovery; GATT discovery does not require bonding or encryption, so an unauthenticated adjacent attacker that the device connects to can trigger it. The impact is denial of service of the Bluetooth subsystem (and likely a watchdog reset on constrained targets); there is no memory disclosure or corruption. The fix adds a rsp->len < sizeof(struct bt_att_data) check before the loop, rejecting under-length responses so the stride is always non-zero and the loop terminates. The sibling parsers parse_include() and parse_characteristic() already validated rsp->len and are unaffected.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-13 17:58 UTC
CWE
Assigner
zephyr CNA under the mitre root
CNA scorecard B 77/100 over 155 records in the last 180 days details
Impacted products
Vendor Product Version
zephyrproject zephyr Affected: 2.6.0 , < 4.4.2 (semver)
Create a notification for this product.
Show details on NVD website

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CVE-2026-11932 (GCVE-0-2026-11932)

Vulnerability from cvelistv5 – Published: 2026-08-12 20:13 – Updated: 2026-08-14 18:29
VLAI
Title
Security vulnerabilities have been found in IBM Verify Identity Access and IBM Security Verify Access
Summary
IBM Security Verify Access 10.0 through 10.0.9.2 and IBM Verify Identity Access 11.0 through 11.0.3 and IBM Verify Identity Access Container 11.0 through 11.0.3 is vulnerable to a denial of service attack.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-14 13:47 UTC
CWE
  • CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
ibm CNA under the mitre root
CNA scorecard B 88/100 over 1165 records in the last 180 days details
References
URL Tags
https://www.ibm.com/support/pages/node/7283079 vendor-advisorypatch
Impacted products
Vendor Product Version
IBM Security Verify Access Affected: 10.0 , ≤ 10.0.9.2 (semver)
    cpe:2.3:a:ibm:security_verify_access:10.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:security_verify_access:10.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:security_verify_access:10.0.9.2:*:*:*:*:*:*:*
Create a notification for this product.
IBM Verify Identity Access Affected: 11.0 , ≤ 11.0.3 (semver)
    cpe:2.3:a:ibm:verify_identity_access:11.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:verify_identity_access:11.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:verify_identity_access:11.0.3:*:*:*:*:*:*:*
Create a notification for this product.
IBM Verify Identity Access Container Affected: 11.0 , ≤ 11.0.3 (semver)
    cpe:2.3:a:ibm:verify_identity_access_container:11.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:verify_identity_access_container:11.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:verify_identity_access_container:11.0.3:*:*:*:*:*:*:*
Create a notification for this product.
IBM Security Verify Access Container Affected: 10.0 , ≤ 10.0.9.2 (semver)
    cpe:2.3:a:ibm:security_verify_access_container:10.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:security_verify_access_container:10.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:security_verify_access_container:10.0.9.2:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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CVE-2026-11352 (GCVE-0-2026-11352)

Vulnerability from cvelistv5 – Published: 2026-07-03 06:12 – Updated: 2026-09-15 06:02
VLAI
Title
QUIC zero-length UDP datagrams busy-loop
Summary
An issue in curl’s QUIC UDP receive function allows a malicious HTTP/3 server to trigger a remote denial of service against a curl or libcurl client. Because the helper function discards zero-length UDP datagrams before counting them toward the per-call packet budget, a connected QUIC peer can continuously stream empty datagrams to indefinitely stall the client.
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-06 18:26 UTC
CWE
  • CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
curl CNA under the redhat root
CNA scorecard D 49/100 over 35 records in the last 180 days details
Impacted products
Vendor Product Version
curl curl Affected: 8.18.0 , < 8.20.1 (semver)
Create a notification for this product.
curl curl Affected: 6a3d0b6d631d5e9bec797306b5b41a9f440a088d , < 56eca2afb4806f1032872fa97d1834b3c1385276 (git)
Create a notification for this product.
curl curl Affected: 8.20.0
Affected: 8.19.0
Affected: 8.18.0
Create a notification for this product.
Show details on NVD website

{
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CVE-2026-10686 (GCVE-0-2026-10686)

Vulnerability from cvelistv5 – Published: 2026-07-31 15:49 – Updated: 2026-07-31 17:30
VLAI
Title
Missing hop-limit decrement on IPv6 forwarding path allows unbounded packet looping (DoS) in Zephyr routers
Summary
Zephyr's IPv6 forwarding path re-sent routed unicast packets without ever decrementing the IPv6 hop limit. Both routing branches of ipv6_route_packet() (subsys/net/ip) were affected: the explicit-route path (net_route_packet()) and the on-link cross-interface path (net_route_packet_if()). Each set the packet forwarding flag and called net_send_data() with the hop limit untouched and no expiry check. Per RFC 8200 the hop-limit decrement is the mechanism that bounds packet lifetime and terminates routing loops; without it, a device acting as an IPv6 router relays looping packets indefinitely. An on-path attacker who can induce or exploit a transient L3 loop turns it into a permanent forwarding storm, causing CPU/bandwidth resource exhaustion (availability DoS) on the forwarder and adjacent links; path-discovery and loop diagnostics that rely on hop-limit expiry are also defeated. Affected configurations. In every affected release the forwarding path is reached via CONFIG_NET_ROUTE (enabled by default when CONFIG_NET_IPV6_NBR_CACHE is set), together with CONFIG_NET_ROUTING for cross-interface routing. Note that CONFIG_NET_IPV6_FORWARDING and CONFIG_NET_IPV4_FORWARDING — which appear in the fix and in this advisory's evidence notes — were introduced after v4.4.0, when the routing options were split and renamed; they do not exist in any affected release. When auditing a v4.4.1-or-earlier configuration, look for CONFIG_NET_ROUTE and CONFIG_NET_ROUTING. IPv4 is not affected in any release. The IPv4 forwarding path (net_route_ipv4_packet() in route_ipv4.c) was added after v4.4.0 and has never shipped in a release. Its TTL decrement and IPv4 header-checksum recomputation landed on main as part of the same fix, so the evidence notes below discuss it, but no released version is reachable by way of IPv4. Affected releases are v1.8.0 through v4.4.1: v1.8.0 introduced net_route_packet() and v2.2.0 added net_route_packet_if(), and neither decremented the hop limit. v4.3.1 carries the explicit-route fix but not the on-link one, so it is affected as well. Fixed on main by 7d8f1afa7345 (explicit-route path) and 589eadc74efa (on-link path).
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-31 17:24 UTC
CWE
Assigner
zephyr CNA under the mitre root
CNA scorecard B 77/100 over 155 records in the last 180 days details
Impacted products
Vendor Product Version
zephyrproject zephyr Affected: 1.8.0 , < 4.5.0 (semver)
Create a notification for this product.
Show details on NVD website

{
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            "subsys/net/ip/ipv4.c",
            "subsys/net/ip/ipv6.c",
            "subsys/net/ip/route.c",
            "subsys/net/ip/route_ipv4.c",
            "subsys/net/ip/route_ipv6.c"
          ],
          "vendor": "zephyrproject",
          "versions": [
            {
              "lessThan": "4.5.0",
              "status": "affected",
              "version": "1.8.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Zephyr\u0027s IPv6 forwarding path re-sent routed unicast packets without ever decrementing the IPv6 hop limit. Both routing branches of ipv6_route_packet() (subsys/net/ip) were affected: the explicit-route path (net_route_packet()) and the on-link cross-interface path (net_route_packet_if()). Each set the packet forwarding flag and called net_send_data() with the hop limit untouched and no expiry check.\n\nPer RFC 8200 the hop-limit decrement is the mechanism that bounds packet lifetime and terminates routing loops; without it, a device acting as an IPv6 router relays looping packets indefinitely. An on-path attacker who can induce or exploit a transient L3 loop turns it into a permanent forwarding storm, causing CPU/bandwidth resource exhaustion (availability DoS) on the forwarder and adjacent links; path-discovery and loop diagnostics that rely on hop-limit expiry are also defeated.\n\nAffected configurations. In every affected release the forwarding path is reached via CONFIG_NET_ROUTE (enabled by default when CONFIG_NET_IPV6_NBR_CACHE is set), together with CONFIG_NET_ROUTING for cross-interface routing. Note that CONFIG_NET_IPV6_FORWARDING and CONFIG_NET_IPV4_FORWARDING \u2014 which appear in the fix and in this advisory\u0027s evidence notes \u2014 were introduced after v4.4.0, when the routing options were split and renamed; they do not exist in any affected release. When auditing a v4.4.1-or-earlier configuration, look for CONFIG_NET_ROUTE and CONFIG_NET_ROUTING.\n\nIPv4 is not affected in any release. The IPv4 forwarding path (net_route_ipv4_packet() in route_ipv4.c) was added after v4.4.0 and has never shipped in a release. Its TTL decrement and IPv4 header-checksum recomputation landed on main as part of the same fix, so the evidence notes below discuss it, but no released version is reachable by way of IPv4.\n\nAffected releases are v1.8.0 through v4.4.1: v1.8.0 introduced net_route_packet() and v2.2.0 added net_route_packet_if(), and neither decremented the hop limit. v4.3.1 carries the explicit-route fix but not the on-link one, so it is affected as well. Fixed on main by 7d8f1afa7345 (explicit-route path) and 589eadc74efa (on-link path)."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 5.8,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-835",
              "description": "dos",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-31T15:49:10.405Z",
        "orgId": "e2e69745-5e70-4e92-8431-deb5529a81ad",
        "shortName": "zephyr"
      },
      "references": [
        {
          "name": "Fix commit",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/zephyrproject-rtos/zephyr/commit/7d8f1afa7345975b58405d6fba18bb8c3f7cb12a"
        },
        {
          "name": "GHSA-4cg6-6jc4-2r6h",
          "url": "https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-4cg6-6jc4-2r6h"
        }
      ],
      "title": "Missing hop-limit decrement on IPv6 forwarding path allows unbounded packet looping (DoS) in Zephyr routers",
      "x_generator": {
        "engine": "cvelib 1.8.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "e2e69745-5e70-4e92-8431-deb5529a81ad",
    "assignerShortName": "zephyr",
    "cveId": "CVE-2026-10686",
    "datePublished": "2026-07-31T15:49:10.405Z",
    "dateReserved": "2026-06-02T15:26:24.115Z",
    "dateUpdated": "2026-07-31T17:30:15.422Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

No mitigation information available for this CWE.

No CAPEC attack patterns related to this CWE.